Testing tool for radio frequency board card

Abstract

According to the test tool for the radio frequency board card provided by the utility model, the structure of the tool is improved, so that the test efficiency of the radio frequency board card is remarkably improved. In order to achieve the above purpose, the utility model provides a testing tool for a radio frequency board card, comprising an elastic part and two connected shell parts, namely a first shell and a second shell, the first shell defines a cavity part used for accommodating a piece to be tested, the elastic part can be telescopically deformed along the connection direction of the two shell parts, and the shell parts can be telescopically deformed along the connection direction of the first shell part and the second shell part. One end of the first shell is directly or indirectly connected with the second shell, the other end of the first shell is directly or indirectly connected with a radio frequency connecting part, and the radio frequency connecting part is opposite to the cavity part in the connecting direction of the two shell parts; and when the two shell parts are connected in a sealing manner, the radio frequency connecting part is partially positioned in the cavity part.

Description

Technical Field

[0001] The utility model relates to the technical field of radio frequency board card testing, in particular to a testing tool for a radio frequency board card. Background Art

[0002] In modern electronic product manufacturing, RF boards are key components, and their performance directly impacts the product's communication quality and overall functionality. The assembly and testing process for RF boards is crucial for ensuring product quality. This typically involves installing the RF board into a specific product housing and connecting it to external signals via an RF connector. During this process, the RF connector's center conductor must be precisely soldered to the corresponding pad on the RF board to ensure stable signal transmission.

[0003] In the traditional assembly and testing process, the RF board is first secured within the product housing, followed by the installation of the RF connector. The RF connector's center conductor is soldered to the pads on the RF board, a step that requires high precision and reliability to ensure a good electrical connection and signal transmission quality. After soldering, the product cover is installed to seal the housing, and the RF and power cables are then connected, preparing for testing.

[0004] However, the testing process involves screwing and soldering, which are not only time-consuming but also increase the complexity of the operation. Especially in a large-scale production environment, these manual operations significantly reduce production efficiency and increase production costs. For the testing of the RF board, if the test results are qualified, the subsequent assembly process can be directly entered; however, if the test fails, the RF board needs to be removed from the product housing and returned to the supplier for repair or replacement. This process requires repeated soldering and screwing, which not only adds extra workload, but also extends the product production cycle, further reducing production efficiency. Utility Model Content

[0005] The purpose of the utility model is to provide a test fixture for a radio frequency board, which significantly improves the test efficiency of the radio frequency board by improving the fixture structure.

[0006] To achieve the above-mentioned objectives, the present invention provides a test fixture for a radio frequency board, comprising an elastic portion and two connected shell portions, namely a first shell and a second shell, wherein the first shell defines a cavity portion for accommodating a test piece, and the elastic portion can be telescopically deformed along the connection direction of the two shell portions, one end of the elastic portion is directly or indirectly connected to the second shell, and the other end is directly or indirectly connected to a radio frequency connection portion, wherein the radio frequency connection portion and the cavity portion are opposite in the connection direction of the two shell portions; when the two shell portions are sealed and connected, part of the radio frequency connection portion is located within the cavity portion.

[0007] The traditional RF connector and the pad of the test piece need to be connected by manual welding. Compared with the traditional manual welding method, the elastic abutment method adopted in the present application replaces the original welding process on the one hand, thereby improving the test efficiency. On the other hand, it replaces the traditional manual operation and improves the consistency of the test results. In addition, in the technical solution of the present application, an elastic part is provided in a shell part, one end of the elastic part is directly or indirectly fixed to a shell part, and the other end is directly or indirectly fixed to the RF connector. When the two shell parts are sealed and connected, under the action of the elastic part, the RF connector is suspended in the corresponding shell part, and at the same time, part of the RF connector is located in the cavity. In this way, during the actual test process, when the test piece is placed in the cavity, under the action of the elastic part, the RF connector will be pressed against the set position of the test piece, thereby forming a tight abutment with the test piece. In this way, it can avoid the situation where the test piece is damaged due to excessive abutment force, and it can also avoid the problem of false connection due to insufficient abutment force.

[0008] Optionally, in the connection direction, the second shell further extends a plurality of conductive ridges toward a side close to the first shell, and the plurality of conductive ridges are opposite to the cavity;

[0009] Compared with the conductive ridge, the RF connection portion is closer to the first shell in the connection direction.

[0010] In order to connect with the guide groove of the test piece, a plurality of conductive ridges are provided in the second shell, and the conductive ridges are used to abut against the guide groove of the test piece in the connection direction; in the connection direction, the RF connector is closer to the first shell than the conductive ridges; thus, when the conductive ridges abut against the test piece, the elastic part is also in a compressed state, thereby ensuring that the RF connector abuts against the pad of the test piece even if the conductive ridges are provided.

[0011] Optionally, the second shell is provided with a hole, which extends along the connection direction; part of the RF connection portion is located outside the second shell, and part thereof can pass through the hole to the inside of the second shell.

[0012] The description that part of the RF connector passes through the hole to the inside of the second shell does not limit the direction in which the RF connector passes through the hole. It can pass from the inside to the outside of the second shell or from the outside to the inside of the second shell.

[0013] During the testing of the test piece, several conductive ridges need to be provided on the shell. The conductive ridges are used to counteract the electrical connection grooves of the test piece. If the RF connection part is entirely provided in the second shell, it will cause the RF connection part to interfere with the layout space of the conductive ridges. Therefore, in this embodiment, the second shell is provided with a hole, and part of the RF connection part is located outside the second shell, and part can pass through the hole to the inside of the second shell to connect with the test piece. Of course, in this embodiment, the second shell can also be provided with no conductive ridges. Even if no conductive ridges are provided, the RF connection part is provided outside the second shell to avoid occupying the internal space of the second shell, which is conducive to miniaturization of the second shell.

[0014] Optionally, the elastic portion is located outside the second shell, and a bracket is further provided outside the second shell, and the bracket is fixedly connected to the second shell; one end of the elastic portion is fixedly connected to the bracket.

[0015] If the elastic portion is directly fixed to the interior of the second shell, it will occupy the space inside the second shell where the conductive ridges are arranged. Therefore, in this embodiment, the location where the elastic portion connects to the RF connector and the second shell is arranged on the outside, thereby freeing up the design space inside the second shell and avoiding interference of the elastic portion with the conductive ridges. Of course, in this embodiment, the second shell can also be provided with no conductive ridges. Even if no conductive ridges are provided, arranging the elastic portion on the outside of the second shell can also avoid occupying the space inside the second shell, which is conducive to miniaturization of the second shell.

[0016] Optionally, a guide column is further included, which extends along the connection direction, one end of which passes through the bracket and can slide along the bracket, and the other end is directly or indirectly fixed to the RF connection part; the elastic part is a spring, and the spring is sleeved on the outside of the guide column.

[0017] In this way, the extension and contraction path of the elastic part is limited to prevent it from swinging during the extension and contraction process.

[0018] Optionally, a connecting plate is further included, and there are multiple RF connecting parts; the multiple RF connecting parts are all fixedly connected to the connecting plate, and the other end of the elastic part is fixedly connected to the connecting plate.

[0019] In this way, the elastic part is indirectly fixedly connected to the multiple radio frequency connecting parts through the connecting plate, which can simplify the structural design.

[0020] Optionally, the connecting plate is located outside the second shell and, under the action of the elastic portion, is pressed against the surface of the second shell away from the first shell, thereby avoiding the connection plate being placed inside the second shell and occupying the internal space of the second shell.

[0021] Optionally, the connecting plate is recessed in a direction close to the first shell to form a plurality of guide protrusions, and the guide protrusions are hollow structures; the RF connection part is arranged and fixed in the guide protrusions; the second shell is recessed in a direction close to the first shell to form a plurality of guide recesses; the guide protrusions are plugged into the guide recesses, and the holes are located on the bottom wall of the guide recesses.

[0022] In this way, the guide concave is plugged into the guide convex, thereby further limiting the connection plate and the second shell in the connection direction.

[0023] Optionally, it further includes a support frame and a driving part, wherein the support frame is used to support the first shell, and the driving part is used to drive the second shell to move along the connection direction.

[0024] In this way, the second shell can be engaged with or opened with the first shell in the connection direction; thereby facilitating the placement and removal of the test piece and further increasing the test efficiency.

[0025] Optionally, the support frame is further provided with a guide post, the guide post extends along the connection direction, and the second shell is directly or indirectly slidably matched with the guide post.

[0026] In this way, it is possible to ensure that the second shell moves along the connection direction, thereby avoiding the situation where the first shell and the second shell are misaligned.

[0027] Other features and advantages of the present specification will become apparent from the following detailed description of exemplary embodiments of the present specification with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the specification and, together with the description, serve to explain the principles of the specification.

[0029] Figure 1 This is a schematic structural diagram of a test tool in an embodiment of the present utility model;

[0030] Figure 2 yes Figure 1 A partial structural exploded view showing a first shell portion;

[0031] Figure 3 yes Figure 1 A partial structural exploded view showing the second shell portion;

[0032] Figure 4 yes Figure 1 Side view of .

[0033] Reference numerals:

[0034] 1. First shell; 11. Cavity; 12. Limiting ring; 13. Limiting protrusion;

[0035] 2. Second shell; 21. Top wall; 22. Guide recess; 221. Mouth; 222. Concave bottom wall; 222a. Hole; 23. Conductive ridge;

[0036] 3. Drive unit;

[0037] 41. Connecting rod; 42. Guide ring;

[0038] 5. Support frame; 51. Base plate; 52. Beam; 53. Mounting frame; 54. Guide column;

[0039] 6. Elastic part;

[0040] 7. RF connection part; 71. Connector; 72. Conductive column; 73. Cable;

[0041] 8. Component to be tested; 81. Solder pad; 82. Conductive slot;

[0042] 9. Connecting plate; 91. Guide protrusion; 911. Opening; 912. Bottom end;

[0043] 10. Bracket; 101. Connecting rod; 102. Spacer; 103. Guide column; 104. Guide bearing. DETAILED DESCRIPTION

[0044] The utility model provides a test fixture for a radio frequency board card, which significantly improves the test efficiency of the radio frequency board card by improving the fixture structure.

[0045] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific implementation methods.

[0046] Relational terms such as “first” and “second” are used merely to distinguish one component from another having the same name, but do not necessarily require or imply any actual relationship or order between these components.

[0047] Please refer to Figures 1 to 4 , Figure 1 This is a schematic structural diagram of a test tool in an embodiment of the present utility model; Figure 2 yes Figure 1 A partial structural exploded view showing a first shell portion; Figure 3 yes Figure 1 A partial structural exploded view showing the second shell portion; Figure 4 yes Figure 1 Side view of .

[0048] As shown in the figure, the present application provides a test fixture for a radio frequency board, comprising an elastic part 6, a support frame 5, a driving part 3 and two connected shell parts, namely a first shell 1 and a second shell 2. The first shell 1 is fixed to the support frame 5, and the driving part 3 is transmission-connected to the second shell 2 to drive the second shell 2 to move in the connection direction of the two shell parts; in this way, the second shell 2 can be snapped together or opened with the first shell 1 in the connection direction; thereby, it is convenient to take and place the test piece 8, further increasing the test efficiency.

[0049] The driving part 3 can be driven electrically, for example, by a motor or a cylinder, or manually in order to save costs; Figure 1 In the example shown, the drive portion 3 uses a push-pull toggle clamp, which is connected to the second shell 2 through a connecting rod 41; the support portion is provided with a guide ring 42, and the connecting rod 41 extends into the guide ring 42; during testing, the staff operates the toggle clamp, and the connecting rod 41 slides along the guide ring 42 in the connection direction of the two shells to connect the first shell 1 and the second shell 2 or separate the first shell 1 and the second shell 2.

[0050] In conventional technical solutions, the first shell 1 and the second shell 2 are connected by threads. Therefore, during the test process, the threads need to be manipulated for both connecting and opening the first shell 1 and the second shell 2, resulting in low test efficiency. With the method of the present application, the first shell 1 and the second shell 2 can be fastened together by the drive unit 3, significantly improving test efficiency.

[0051] In the embodiment of the present application, the connection direction of the two shell parts can be in the vertical direction, in the horizontal direction, or in other directions, which is not specifically limited here; for the convenience of description, the following embodiments are explained using the vertical connection direction as an example.

[0052] like Figure 1 、 Figure 2 and Figure 4 As shown, the first shell 1 defines a cavity 11 for accommodating the DUT 8. The first shell 1 is a plate-like structure and is fixedly connected to the bottom plate 51 of the support frame 5 by screws. The lower surface of the first shell 1 is in contact with the bottom plate 51, and the upper surface is provided with a limit ring 12, which is used to form a stop for the peripheral wall of the DUT 8. The highest point of the limit ring 12 is flush with or lower than the upper surface of the DUT 8 (the upper surface of the RF board, i.e., the surface to be tested, will have electrical connection grooves and pads 81). In this embodiment, the cavity 11 is flush with or covers the highest point of the limit ring 12 in the height direction. Optionally, the first shell 1 is further provided with a limit protrusion 13, which is used to plug into the mounting hole 222a of the DUT 8 to form a limit fit.

[0053] The elastic portion 6 can be extended and deformed along the connection direction of the two shells. In this embodiment, the elastic portion 6 is extended and deformed along the height direction. One end of the elastic portion 6 is directly or indirectly connected to the second shell 2, and the other end is directly or indirectly connected to the RF connector 7. The RF connector 7 is used to connect the cable 73. When the elastic portion 6 is extended and deformed, the RF connector 7 can retract toward the side close to the second shell 2 at the initial position. The RF connector 7 is opposite to the cavity 11 in the height direction. That is, the extension direction of the RF connector 7 is perpendicular to the cavity 11. The cavity 11 extends in the horizontal direction in this embodiment. When the two shells are sealed and connected, part of the RF connector 7 is located in the cavity 11. That is, when the test piece 8 is not loaded into the test fixture, part of the RF connector 7 is located in the cavity 11. After the test piece 8 is loaded, the test piece 8 pushes the RF connector 7 out of the cavity 11, so that under the action of the elastic portion 6, the RF connector 7 is tightly pressed against the pad 81.

[0054] The traditional testing method has the disadvantages of low efficiency and low consistency. Specifically, the traditional testing process includes screwing and soldering processes, both of which are processes with high working hours. The more pads 81 there are on the RF board, the more working hours are required for testing, and the lower the overall efficiency. Since the test piece 8 and the RF connection part 7 are electrically conductive through manual soldering, this results in different physical properties of electrical conductivity between different test pieces 8 and between different pads 81 within the same test piece 8, which will eventually lead to differences in test results and affect the evaluation of the performance of the RF board.

[0055] Compared with the traditional manual welding method, the elastic abutment method used in this application replaces the original welding process on the one hand, thereby improving the test efficiency; on the other hand, it replaces the traditional manual operation and improves the consistency of the test results.

[0056] In addition, in the technical solution of the present application, an elastic part 6 is provided in a shell part, one end of the elastic part 6 is directly or indirectly fixed to one shell part, and the other end is directly or indirectly fixed to the RF connector 7. When the two shell parts are sealed and connected, under the action of the elastic part 6, the RF connector 7 is suspended in the corresponding shell part, and at the same time, part of the RF connector 7 is located in the cavity 11. In this way, during the actual test process, when the test piece 8 is placed in the cavity 11, under the action of the elastic part 6, the RF connector 7 will be pressed against the set position of the test piece 8, thereby forming a tight abutment with the test piece 8. In this way, it can avoid the situation where the abutment force is too large and causes damage to the test piece 8, and it can also avoid the problem of false connection caused by too small abutment force.

[0057] In other embodiments of the present application, in the height direction, the top wall portion 21 of the second shell 2 extends downward, toward the side close to the first shell 1, and a plurality of conductive ridges 23 are extended, and the plurality of conductive ridges 23 are opposite to the cavity portion 11; the ridges of the conductive ridges 23 are provided with conductive glue, and the conductive glue is used to correspond to the conductive groove 82 provided on the upper surface of the test piece 8; the shape of the conductive ridges 23 is consistent with the extended shape of the guide groove of the test piece 8. Compared with the conductive ridges 23, the RF connector 7 is closer to the first shell 1 in the connection direction. In this way, when the conductive ridges 23 are in contact with the test piece 8, the elastic portion 6 is also in a compressed state. Therefore, even if the conductive ridges 23 are provided, it can be ensured that the RF connector 7 is tightly contacted with the pad 81 of the test piece 8.

[0058] Optionally, the second shell 2 is provided with a hole 222a, which extends along the connection direction to connect the interior and exterior of the second shell 2. The hole 222a is provided on the top wall portion 21 of the second shell 2. Part of the RF connector 7 is located outside the second shell 2, and part of it can pass through the hole 222a to the interior of the second shell 2. The description that part of the RF connector 7 passes through the hole 222a to the interior of the second shell 2 does not limit the direction in which the RF connector 7 passes through the hole 222a. The RF connector 7 can pass from the interior of the second shell 2 to the exterior, or from the exterior of the second shell 2 to the interior.

[0059] In the example shown in the figure, the two shell portions are interlocked to form an accommodating cavity, and the cavity portion 11 is located in the accommodating cavity; the top wall portion 21 of the second shell 2 is also provided with a guide recess 22, which is recessed downward from the top wall portion 21, and the guide recess 22 includes an inner wall and an outer wall, the inner wall is located outside the accommodating cavity and is connected to the external space of the second shell 2; the outer wall constitutes part of the cavity wall of the accommodating cavity.

[0060] The guide recess 22 has an opening 221 and a bottom wall 222 that are opposed in height. The bottom wall 222 is provided with the aforementioned hole 222a. To align with the guide recess 22, the RF connector 7 is provided on the guide protrusion 91. The guide protrusion 91 is a tubular structure with an opening 911 sealed at one end. The guide protrusion 91 can be inserted into the guide recess 22 in the height direction. The bottom end 912 of the guide protrusion 91 is defined as the sealed end, and the opening 911 is located at the top. The opening 911 of the guide protrusion 91 is used to extend into the RF connector 7. The RF connector 7 includes a connector 71 and a conductive post 72, which is provided at the bottom of the connector 71. The connector 71 is threadedly connected to the bottom end 912 of the guide protrusion 91. The conductive post 72 passes through the bottom end 912 of the guide protrusion 91 and faces the hole 222a. The other end of the elastic portion 6 is directly or indirectly fixedly connected to the guide protrusion 91.

[0061] During the testing of the device under test 8, a number of conductive ridges 23 need to be provided on the shell. The conductive ridges 23 are used to abut against the electrical connection grooves of the device under test 8. If the RF connector 7 is entirely disposed within the second shell 2, the RF connector 7 will interfere with the layout space of the conductive ridges 23. Therefore, in this embodiment, the second shell 2 is provided with a hole 222a. Part of the RF connector 7 is located outside the second shell 2, and part of it can pass through the hole 222a to the inside of the second shell 2 to connect with the device under test 8. Of course, in this embodiment, the second shell 2 can also be provided with no conductive ridges 23. Even if no conductive ridges 23 are provided, disposing part of the RF connector 7 outside the second shell 2 can avoid occupying the internal space of the second shell 2, which is conducive to miniaturization of the second shell 2.

[0062] At the same time, by providing the guide recess 22 and cooperating with the guide protrusion 91 , it is possible to avoid deviation during the buckling process between the first shell 1 and the second shell 2 .

[0063] In this embodiment, the elastic portion 6 is also located outside the second shell 2. A bracket 10 is also provided on the outside of the second shell 2, and the bracket 10 is fixedly connected to the second shell 2. One end of the elastic portion 6 is fixedly connected to the bracket 10. The bracket 10 is arranged in a horizontal direction, that is, perpendicular to the connection direction, and parallel to the top wall 21 of the second shell 2. The second shell 2 and the bracket 10 are spaced apart in the height direction. That is, a spacer 102 is formed between the bracket 10 and the top wall 21 of the second shell 2. One end of the connecting rod 101 is fixedly connected to the bracket 10, and the other end is fixedly connected to the top wall 21 of the second shell 2. The elastic portion 6 is disposed within the spacer 102 and can be extended and deformed in the height direction within the spacer 102. When a guide protrusion 91 is provided, the guide protrusion 91 is also located within the spacer 102 and can extend downward from the spacer 102 into the guide recess 22.

[0064] If the elastic portion 6 is directly fixed to the interior of the second shell 2, it will occupy the space inside the second shell 2 where the conductive ridges 23 are arranged. Therefore, in this embodiment, the location where the elastic portion 6 connects to the RF connector 7 and the second shell 2 is arranged outside, thereby freeing up the design space inside the second shell 2 and avoiding interference between the elastic portion 6 and the conductive ridges 23. Of course, in this embodiment, the second shell 2 can also be provided with no conductive ridges 23. Even if no conductive ridges 23 are provided, arranging the elastic portion 6 outside the second shell 2 can avoid occupying the internal space of the second shell 2, which is conducive to miniaturization of the second shell 2.

[0065] Furthermore, it also includes a connecting plate 9, and there are multiple RF connecting parts 7; the multiple RF connecting parts 7 are all fixedly connected to the connecting plate 9, and the other end of the elastic part 6 is fixedly connected to the connecting plate 9.

[0066] In this way, the elastic part 6 is indirectly fixedly connected to the plurality of RF connection parts 7 via the connecting plate 9 , which can simplify the structural design.

[0067] In this embodiment, the connecting plate 9 is located outside the second shell 2 and between the second shell 2 and the bracket 10. The connecting plate 9 is arranged parallel to the top wall portion 21 of the second shell 2. Under the action of the elastic portion 6, the connecting plate 9 is pressed against the surface of the second shell 2 away from the first shell 1. In this way, it is possible to avoid placing the connecting plate 9 inside the second shell 2, which would occupy the internal space of the second shell 2.

[0068] The connecting plate 9 is recessed toward the direction close to the first shell 1 to form a plurality of guide protrusions 91, and the guide protrusions 91 are hollow structures; the RF connector 7 is arranged and fixed in the guide protrusions 91; the second shell 2 is recessed toward the direction close to the first shell 1 to form a plurality of guide recesses 22; the guide protrusions 91 are plugged into the guide recesses 22, and the holes 222a are located on the concave bottom wall 222 of the guide recess 22.

[0069] In this way, the guide recess 22 is plugged into the guide protrusion 91 , thereby further limiting the connection plate 9 and the second shell 2 in the connection direction.

[0070] In the above embodiment, a guide post 103 is further included. The guide post 103 extends along the connection direction, with one end passing through the bracket 10 and capable of sliding along the bracket 10, and the other end being directly or indirectly fixed to the RF connector 7. The elastic portion 6 is a spring, which is sleeved on the outside of the guide post 103. Specifically, a guide bearing 104 is provided at the position where the guide post 103 passes through the bracket 10. The guide post 103 is located within the guide bearing 104, thereby reducing sliding friction between the guide post 103 and the bracket 10. In this way, the extension and retraction path of the elastic portion 6 is limited to prevent it from swinging during the extension and retraction process.

[0071] In any of the above-mentioned embodiments, the support frame 5 is further provided with a guide post 54, which extends along the connection direction, and the second shell 2 directly or indirectly slides with the guide post 54. The guide post 54 extends in the height direction, and one end is fixedly connected to the base plate 51. The support frame 5 also includes a side beam 52, which is horizontally connected to the mounting frame 53, and the other end of the guide post 54 is fixedly connected to the mounting frame 53. Specifically, the bracket 10 is slidably connected to the guide post 54, and a guide bearing 104 is also provided at the position where the guide post 54 and the bracket 10 are slidably connected, thereby reducing the sliding friction between the bracket 10 and the guide post 54. In this way, the second shell 2 can be ensured to move along the connection direction, thereby avoiding the misalignment of the first shell 1 and the second shell 2.

[0072] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help you understand the core concept of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A test fixture for a radio frequency board, characterized in that: The invention comprises an elastic portion (6) and two connected shell portions, namely a first shell (1) and a second shell (2), wherein the first shell (1) defines a cavity portion (11), and the elastic portion (6) can be extended and deformed along the connection direction of the two shell portions, one end of the elastic portion (6) is directly or indirectly connected to the second shell (2), and the other end is directly or indirectly connected to a radio frequency connection portion (7), wherein the radio frequency connection portion (7) and the cavity portion (11) are opposite to each other in the connection direction; when the two shell portions are connected, part of the radio frequency connection portion (7) is located in the cavity portion (11).

2. The test fixture for the radio frequency board according to claim 1, characterized in that: In the connection direction, the second shell (2) extends a plurality of conductive ridges (23) toward a side close to the first shell (1), and the plurality of conductive ridges (23) are opposite to the cavity (11); Compared to the conductive ridge (23), the radio frequency connection portion (7) is closer to the first shell (1) in the connection direction.

3. The test fixture for the radio frequency board according to claim 1, characterized in that: The second shell (2) is provided with a hole (222a), and the hole (222a) extends along the connection direction; Part of the radio frequency connection portion (7) is located outside the second shell (2), and part can pass through the hole (222a) to the inside of the second shell (2).

4. The test fixture for the radio frequency board according to claim 3, characterized in that: The elastic portion (6) is located outside the second shell (2), and a bracket (10) is further provided outside the second shell (2), wherein the bracket (10) is fixedly connected to the second shell (2); one end of the elastic portion (6) is fixedly connected to the bracket (10).

5. The test fixture for radio frequency board according to claim 4, characterized in that: The invention also includes a guide column (103), wherein the guide column (103) extends along the connection direction, one end of which passes through the bracket (10) and can slide along the bracket (10), and the other end is directly or indirectly fixed to the radio frequency connection part (7); the elastic part (6) is a spring, and the spring is sleeved on the outside of the guide column (103).

6. The test fixture for the radio frequency board according to claim 5, characterized in that: It also includes a connecting plate (9), and the radio frequency connecting parts (7) are multiple; The plurality of radio frequency connecting parts (7) are all fixedly connected to the connecting plate (9), and the other end of the elastic part (6) is fixedly connected to the connecting plate (9).

7. The test fixture for the radio frequency board according to claim 6, characterized in that: The connecting plate (9) is located outside the second shell (2), and under the action of the elastic portion (6), the connecting plate (9) is pressed against the surface of the second shell (2) away from the first shell (1).

8. The test fixture for radio frequency board according to claim 6, characterized in that: The connecting plate (9) is recessed in a direction close to the first shell (1) to form a plurality of guide protrusions (91); the guide protrusions (91) are hollow structures, and the radio frequency connecting portion (7) is fixed in the guide protrusions (91); The second shell (2) is recessed in a direction close to the first shell (1) to form a plurality of guide recesses (22); the guide protrusions (91) are plugged into the guide recesses (22), and the holes (222a) are located on the bottom walls (222) of the guide recesses (22).

9. The test fixture for the radio frequency board according to any one of claims 1 to 8, characterized in that: It also includes a support frame (5) and a driving part (3), wherein the support frame (5) is used to support the first shell (1), and the driving part (3) is transmission-connected to the second shell (2) to drive the second shell (2) to move along the connection direction.

10. The test fixture for radio frequency board according to claim 9, characterized in that: The support frame (5) is further provided with a guide column (54), the guide column (54) extending along the connection direction, and the second shell (2) is directly or indirectly slidably matched with the guide column (54).

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