Low-loss duplexer for mobile communication

Abstract

The utility model discloses a mobile communication duplexer with small loss, which comprises a cavity and a cavity cover, an electrical component body is mounted in the cavity, and four mounting bolts are arranged between the cavity cover and the cavity. By arranging a heat dissipation shell, a mounting hole, a servo motor, a rotating rod, heat dissipation fan blades and ventilation holes, after the heat dissipation shell is mounted in the mounting hole, when an electric appliance element in a cavity starts to work, the servo motor is started, the output end of the servo motor drives the rotating rod to rotate, the rotating rod rotates to drive the two heat dissipation fan blades to rotate, and the heat dissipation fan blades are cooled. At the moment, heat dissipated by the electric appliance elements in the cavity is discharged to the outside by the heat dissipation fan blades through the ventilation holes, active heat dissipation of the heat dissipated by the electric appliance elements in the cavity is completed, the situation that the heat in the cavity cannot be discharged, the service life of the electric appliance elements is prolonged, and the service life of the electric appliance elements is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of duplexers, in particular to a duplexer for mobile communication with low loss. Background Art

[0002] A duplexer is an electronic device commonly used in the field of wireless communications. It can realize the function of simultaneously transmitting and receiving signals on the same antenna. Its components include antennas, filters, amplifiers, mixers, couplers, etc.

[0003] After searching, the publication number is: CN204834810U, which discloses a duplexer. The cavity cover does not exceed the edge of the cavity and has high integrity, so the signal is not easy to leak. In the above-mentioned prior art, electrical components are installed in the cavity. The higher the power of the electrical components, the higher the heat generated. However, after the electrical components are installed in the cavity, the heat cannot be actively dissipated to the outside. The heat dissipated after the electrical components work in the cavity for a long time can easily cause the electrical components to overheat and be damaged, which will increase the loss of the life of the electrical components in the cavity.

[0004] In order to solve the above problems, the utility model provides a duplexer for mobile communication with low loss. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a low-loss duplexer for mobile communications to solve the technical problem in the prior art that "in the above-mentioned prior art, electrical components are installed in the cavity, and the higher the power of the electrical components, the higher the heat generated. However, after the electrical components are installed in the cavity, the heat cannot be actively dissipated to the outside. After the electrical components work in the cavity for a long time, the heat dissipated can easily cause the electrical components to overheat and be damaged, which will increase the loss of the life of the electrical components in the cavity."

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A duplexer for mobile communication with low loss comprises a cavity and a cavity cover, an electrical component body is installed in the cavity, four mounting bolts are arranged between the cavity cover and the cavity, the cavity cover is fixedly mounted on the upper end surface of the cavity by the four mounting bolts, a mounting hole is provided in the cavity cover, two grooves are symmetrically provided on the inner wall of the mounting hole, two limiting slide grooves are provided on the inner wall of the mounting hole, the two limiting slide grooves are respectively connected with the two grooves, a heat dissipation shell is provided in the mounting hole, two limiting blocks matching the grooves are symmetrically fixedly connected on the side wall of the heat dissipation shell, the upper end of the heat dissipation shell is an opening, a plurality of ventilation holes are provided on the lower end surface of the heat dissipation shell, a motor groove is provided on the inner wall of the heat dissipation shell, a servo motor is fixedly installed in the motor groove, a rotating rod is fixedly connected to the output end of the servo motor, two heat dissipation fan blades are symmetrically fixedly connected to the side wall of the rotating rod, a waveguide outlet is provided on the side wall of the cavity, and a dustproof screen is fixedly installed in the waveguide outlet.

[0008] As a preferred technical solution of the present utility model, the two limit blocks are slidably connected to the inner walls of the two grooves.

[0009] As a preferred technical solution of the utility model, the side wall of the heat dissipation shell is slidably connected to the inner wall of the mounting hole.

[0010] As a preferred technical solution of the present utility model, the two limit blocks are slidably connected to the inner walls of the two limit sliding grooves.

[0011] As a preferred technical solution of the utility model, the inner wall of the motor slot is provided with heat dissipation silica gel, and the heat dissipation silica gel is in contact with the outside.

[0012] As a preferred technical solution of the utility model, the cavity cover and the inner wall of the cavity are respectively provided with threaded holes and threaded grooves matching the mounting bolts, and the mounting bolts are threadedly connected with the threaded holes and threaded grooves.

[0013] The utility model provides a low-loss duplexer for mobile communication, which has the following beneficial effects:

[0014] 1. By setting a heat dissipation shell, a mounting hole, a servo motor, a rotating rod, a heat dissipation fan blade, and a ventilation hole, when the heat dissipation shell is installed in the mounting hole, when the electrical components in the cavity start to work, the servo motor is started, and the output end of the servo motor drives the rotating rod to rotate, and the rotation of the rotating rod drives the two heat dissipation fan blades to rotate. At this time, the heat emitted by the electrical components in the cavity is discharged to the outside through multiple ventilation holes by the heat dissipation fan blades. At this time, the heat emitted by the electrical components in the cavity is actively dissipated, which avoids the heat in the cavity from being unable to be discharged, increasing the loss of the life of the electrical components, and extending the service life of the electrical components;

[0015] 2. By setting the heat dissipation shell, the mounting hole, the groove, the limit block and the limit slide groove, align the two limit blocks on the side wall of the heat dissipation shell with the two grooves and insert them therein, the heat dissipation shell will slide down along the inner wall of the mounting hole synchronously, and then the heat dissipation shell will be rotated clockwise to make the two limit blocks slide into the limit slide groove in the groove, and the limit fixation of the heat dissipation shell in the mounting hole is completed at this time, which prevents the heat dissipation shell from falling off from the mounting hole and the cavity cover when the cavity cover and the cavity body move, and improves the stability of the heat dissipation shell fixed in the cavity cover and the mounting hole;

[0016] 3. By setting a waveguide outlet and a dustproof screen, the dustproof screen is installed in the waveguide outlet. The servo motor drives the rotating rod and the heat dissipation fan blades to dissipate the heat in the cavity through multiple ventilation holes. At the same time, the outside air enters the cavity through the waveguide outlet. The dustproof screen can prevent dust and debris in the air from polluting the inside of the cavity when the air enters the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a low-loss duplexer for mobile communication proposed by the utility model;

[0018] Figure 2 This is a front structural cross-sectional view of a low-loss duplexer for mobile communication proposed by the utility model;

[0019] Figure 3 This is a top view of the structural cross-section of a low-loss duplexer for mobile communications proposed by the utility model.

[0020] In the figure: 1 cavity, 2 cavity cover, 3 mounting bolts, 4 heat dissipation shell, 5 groove, 6 limit slide groove, 7 limit block, 8 ventilation hole, 9 servo motor, 10 rotating rod, 11 heat dissipation fan blade, 12 dustproof screen. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the implementation mode of the utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] Example

[0023] refer to Figure 1-3 A duplexer for mobile communication with low loss comprises a cavity 1 and a cavity cover 2. An electrical component body is installed in the cavity 1. Four mounting bolts 3 are arranged between the cavity cover 2 and the cavity 1. The cavity cover 2 is fixedly installed on the upper end surface of the cavity 1 by the four mounting bolts 3. A mounting hole is provided in the cavity cover 2. Two grooves 5 are symmetrically provided on the inner wall of the mounting hole. Two limiting slide grooves 6 are provided on the inner wall of the mounting hole. The two limiting slide grooves 6 are respectively connected with the two grooves 5. A heat dissipation shell 4 is provided in the mounting hole. Two limiting blocks 7 matching the grooves 5 are symmetrically fixedly connected on the side wall of the heat dissipation shell 4. The upper end of the heat dissipation shell 4 is open. A plurality of ventilation holes 8 are provided on the lower end surface of the heat dissipation shell 4. A motor slot is provided on the inner wall of the heat dissipation shell 4. A servo motor 9 is fixedly installed in the motor slot. A rotating rod 10 is fixedly connected to the output end of the servo motor 9. Two heat dissipation fan blades 11 are symmetrically fixedly connected to the side wall of the rotating rod 10. A waveguide outlet is provided on the side wall of the cavity 1. A dustproof screen 12 is fixedly installed in the waveguide outlet.

[0024] After the electrical components are installed in the cavity 1, the cavity cover 2 is covered on the cavity 1, and then the cavity cover 2 is installed on the cavity 1 using four mounting bolts 3. At this time, the cavity cover 2 has completed the sealing of the cavity 1, and then the two limit blocks 7 on the side walls of the heat dissipation shell 4 are aligned with the two grooves 5 and inserted therein. At this time, the heat dissipation shell 4 synchronously slides downward along the inner wall of the mounting hole, and then the heat dissipation shell 4 is rotated clockwise to make the two limit blocks 7 slide in the grooves 5 into the limit slide grooves 6. At this time, the heat dissipation shell 4 in the mounting hole is fixed. When the electrical components in the cavity 1 start to work, the servo motor 9 is started, and the output end of the servo motor 9 drives the rotating rod 10 to rotate, and the rotation of the rotating rod 10 drives the two heat dissipation blades 11 to rotate. At this time, the heat emitted by the electrical components in the cavity 1 is discharged to the outside through the multiple ventilation holes 8 by the heat dissipation blades 11. At this time, the active heat dissipation of the heat emitted by the electrical components in the cavity 1 is completed, which avoids the heat in the cavity 1 from being unable to be discharged, increasing the loss of the life of the electrical components, and extending the service life of the electrical components.

[0025] The two limit blocks 7 are both slidably connected to the inner walls of the two grooves 5 .

[0026] By making the two limit blocks 7 slidably connected to the inner walls of the two grooves 5, the two limit blocks 7 can slide along the inner walls of the grooves 5;

[0027] The side wall of the heat dissipation shell 4 is slidably connected to the inner wall of the mounting hole.

[0028] By making the side wall of the heat dissipation shell 4 slidably connected with the inner wall of the mounting hole, the heat dissipation shell 4 can slide along the inner wall of the mounting hole;

[0029] The two limiting blocks 7 are both slidably connected to the inner walls of the two limiting sliding grooves 6 .

[0030] By making the two limit blocks 7 slidably connected to the inner wall of the limit slide groove 6, the two limit blocks 7 can slide and move in the limit slide groove 6;

[0031] Wherein, the inner wall of the motor slot is provided with heat dissipation silica gel, and the heat dissipation silica gel is in contact with the outside.

[0032] By providing heat dissipation silica gel, the heat at the bottom of the servo motor 9 in the motor slot can be transferred by the heat dissipation silica gel and dissipated to the outside;

[0033] The cavity cover 2 and the inner wall of the cavity body 1 are respectively provided with threaded holes and threaded grooves matching the mounting bolts 3 , and the mounting bolts 3 are threadedly connected with the threaded holes and threaded grooves.

[0034] By providing the threaded hole and the threaded groove, the mounting bolt 3 can pass through the threaded hole and the threaded groove to threadably fix the cavity cover 2 and the cavity body 1 .

[0035] The working principle of the utility model is as follows: after the electrical components are installed in the cavity 1, the cavity cover 2 is covered on the cavity 1, and then the cavity cover 2 is installed on the cavity 1 using four mounting bolts 3, at which point the cavity cover 2 has completed the sealing of the cavity 1, and then the two limiting blocks 7 on the side wall of the heat dissipation shell 4 are aligned with the two grooves 5 and inserted therein, at which point the heat dissipation shell 4 simultaneously slides downward along the inner wall of the mounting hole, and then the heat dissipation shell 4 is rotated clockwise, so that the two limiting blocks 7 slide in the grooves 5 into the limiting slide grooves 6, at which point the heat dissipation shell 4 is fixed in the mounting hole;

[0036] When the electrical components in the cavity 1 start to work, the servo motor 9 is started, and the output end of the servo motor 9 drives the rotating rod 10 to rotate, and the rotation of the rotating rod 10 drives the two heat dissipation blades 11 to rotate. At this time, the heat emitted by the electrical components in the cavity 1 is discharged to the outside through multiple ventilation holes 8 by the heat dissipation blades 11. At this time, the active heat dissipation of the heat emitted by the electrical components in the cavity 1 is completed, avoiding the heat in the cavity 1 from being unable to be discharged, increasing the loss of the life of the electrical components, and extending the service life of the electrical components.

[0037] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

Claims

1. A low-loss duplexer for mobile communication, comprising a cavity (1) and a cavity cover (2), characterized in that: An electrical component body is installed in the cavity (1); four mounting bolts (3) are arranged between the cavity cover (2) and the cavity (1); the cavity cover (2) is fixedly installed on the upper end surface of the cavity (1) by means of the four mounting bolts (3); a mounting hole is provided in the cavity cover (2); two grooves (5) are symmetrically provided on the inner wall of the mounting hole; two limiting slide grooves (6) are provided on the inner wall of the mounting hole; the two limiting slide grooves (6) are respectively connected to the two grooves (5); a heat dissipation shell (4) is provided in the mounting hole; and a heat dissipation shell (4) is provided on the side wall of the heat dissipation shell (4). Two limit blocks (7) matching the grooves (5) are fixedly connected, the upper end of the heat dissipation shell (4) is open, and the lower end surface of the heat dissipation shell (4) is provided with a plurality of ventilation holes (8), the inner wall of the heat dissipation shell (4) is provided with a motor groove, a servo motor (9) is fixedly installed in the motor groove, the output end of the servo motor (9) is fixedly connected with a rotating rod (10), and the side wall of the rotating rod (10) is symmetrically fixedly connected with two heat dissipation fan blades (11), and a waveguide outlet is provided on the side wall of the cavity (1), and a dustproof screen (12) is fixedly installed in the waveguide outlet.

2. A low-loss duplexer for mobile communication according to claim 1, characterized in that: The two limit blocks (7) are both slidably connected to the inner walls of the two grooves (5).

3. A low-loss duplexer for mobile communication according to claim 1, characterized in that: The side wall of the heat dissipation shell (4) is slidably connected to the inner wall of the mounting hole.

4. A low-loss duplexer for mobile communication according to claim 1, characterized in that: The two limiting blocks (7) are both slidably connected to the inner walls of the two limiting sliding grooves (6).

5. The low-loss duplexer for mobile communication according to claim 1, characterized in that: The inner wall of the motor slot is provided with heat dissipation silica gel, and the heat dissipation silica gel is in contact with the outside.

6. The low-loss duplexer for mobile communication according to claim 1, characterized in that: The cavity cover (2) and the inner wall of the cavity body (1) are respectively provided with threaded holes and threaded grooves matching the mounting bolts (3), and the mounting bolts (3) are threadedly connected to the threaded holes and threaded grooves.

Images