CN215186716U

CN215186716U - Miniaturized anti-interference radio frequency receiving circuit module

Info

Publication number: CN215186716U
Application number: CN202121081946.7U
Authority: CN
Inventors: 黄帅
Original assignee: Shenzhen Tiangong Navigation Technology Co ltd
Current assignee: Shenzhen Tiangong Navigation Technology Co ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-12-14
Anticipated expiration: 2031-05-20

Abstract

The utility model discloses a miniaturized anti-interference radio frequency receiving circuit module, including the mounting panel, the fixed box of fixedly connected with on the mounting panel, the spout has been seted up on the mounting panel, the inside fixedly connected with dead lever of spout, the connecting rod has been cup jointed in the outside slip of dead lever, the outside of dead lever is provided with the spring, the fixedly connected with fixed block on the connecting rod, fixed block and fixed box contact, fixedly connected with stopper on the fixed block, stopper and fixed box sliding connection, fixedly connected with lug on the stopper, the contact has the circuit board on the lug. The utility model discloses a design lug can play a spacing fixed effect to the circuit board with the contact of circuit board for the mounting means of circuit board is more convenient, and through the effect of design drying plate, can play a drying effect to the inside of fixed box, thereby can prevent effectively that the circuit board from weing the damage.

Description

Miniaturized anti-interference radio frequency receiving circuit module

Technical Field

The utility model relates to an airborne satellite communication technical field specifically is a miniaturized anti-interference radio frequency receiving circuit module.

Background

Satellite navigation systems involve both space and ground segments, and suffer from a wide variety of noise and interference. The noise of the receiver mainly comes from two aspects, namely external noise received by the antenna, wherein the external noise refers to electromagnetic waves except useful signals received by the antenna, and mainly comprises astronomical cosmic noise, geothermic noise, radio signals and artificial noise. And the other is fluctuating noise generated inside the microwave electronic system. The internal noise of the receiver is generated by circuit elements and devices. Mainly includes thermal noise generated by thermal movement of electrons in a conductive body, shot noise generated by emission unevenness of charged particles (electrons or holes) in an electronic device, distribution noise generated by distribution unevenness of charged particles to each electrode, and "flicker noise" due to manufacturing process imperfection of elements and materials themselves. The noise generation directly affects the signal-to-noise ratio which is an important index for simulating the performance of a communication channel; for digital communications, noise generation directly leads to a decrease in channel capacity and an increase in bit error rate.

When the existing miniaturized anti-interference radio frequency receiving circuit module is used, the installation mode of a circuit board is complex, so that the circuit board is inconvenient to install and operate, the radiating effect of the inside of the circuit board is poor, and the circuit board is easy to overheat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniaturized anti-interference radio frequency receiving circuit module has solved the comparatively loaded down with trivial details problem of the mounting means of circuit board, has still solved the not good problem of the inside radiating effect of circuit board.

In order to achieve the above object, the utility model provides a following technical scheme: a miniaturized anti-interference radio frequency receiving circuit module comprises a mounting plate, wherein a fixing box is fixedly connected onto the mounting plate, a chute is formed in the mounting plate, a fixing rod is fixedly connected into the chute, a connecting rod is sleeved on the outer side of the fixing rod in a sliding mode, a spring is arranged on the outer side of the fixing rod, a fixing block is fixedly connected onto the connecting rod and is in contact with the fixing box, a limiting block is fixedly connected onto the fixing block and is in sliding connection with the fixing box, a protruding block is fixedly connected onto the limiting block and is in contact with a circuit board, the circuit board is in contact with the inner wall of the fixing box and the mounting plate respectively, a heat conducting plate is in contact with the circuit board, a drying plate is in contact with the inner wall of the fixing box, an upper cover is in contact with the fixing box, and a heat conducting rod is arranged on the upper cover, the heat conducting rod penetrates through the drying plate and is in contact with the heat conducting plate, the upper cover is provided with a sealing ring, the sealing ring is in contact with the inner walls of the drying plate and the fixing box respectively, a clamping block is fixedly connected to the sealing ring, and the clamping block is clamped with the inner wall of the fixing box.

Preferably, a through hole is formed in the connecting rod, and a fixing rod is slidably connected inside the through hole.

Preferably, one end of the spring is in contact with the mounting plate, and the other end of the spring is in contact with the connecting rod.

Preferably, the fixed box is provided with a through groove, and the inside of the through groove is connected with a limiting block in a sliding manner.

Preferably, the number of the heat conduction rods is multiple, and the multiple heat conduction rods are uniformly distributed on the upper cover.

Preferably, a clamping groove is formed in the inner wall of the fixing box, and a clamping block is clamped inside the clamping groove.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a design lug can play a spacing fixed effect to the circuit board with the contact of circuit board for the mounting means of circuit board is more convenient, and through the effect of design drying plate, can play a drying effect to the inside of fixed box, thereby can prevent effectively that the circuit board from weing the damage.

2. The utility model discloses a design heat-conducting plate and heat conduction pole's effect can play an absorption effect to the heat of circuit board, through the contact of heat conduction pole with the outside air to reach the radiating effect of circuit board, can prevent effectively that circuit board is overheated to influence its normal use.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

fig. 2 is a front cross-sectional view of the present invention in fig. 1;

fig. 3 is an enlarged view of a portion a of fig. 2 according to the present invention.

In the figure: 1. mounting a plate; 2. a fixing box; 3. a circuit board; 4. a chute; 5. fixing the rod; 6. a connecting rod; 7. a through hole; 8. a spring; 9. a fixed block; 10. a through groove; 11. a limiting block; 12. a bump; 13. a heat conducting plate; 14. drying the plate; 15. a heat conducting rod; 16. an upper cover; 17. a seal ring; 18. a clamping block; 19. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1, 2 and 3, a miniaturized anti-interference radio frequency receiving circuit module comprises a mounting plate 1, a fixing box 2 is fixedly connected to the mounting plate 1, a chute 4 is formed on the mounting plate 1, a fixing rod 5 is fixedly connected to the inside of the chute 4, a connecting rod 6 is slidably sleeved on the outer side of the fixing rod 5, a spring 8 is arranged on the outer side of the fixing rod 5, a fixing block 9 is fixedly connected to the connecting rod 6, the fixing block 9 is in contact with the fixing box 2, a limiting block 11 is fixedly connected to the fixing block 9, the limiting block 11 is slidably connected to the fixing box 2, a convex block 12 is fixedly connected to the limiting block 11, the convex block 12 is made of a rubber material, a circuit board 3 is in contact with the convex block 12, the circuit board 3 is in contact with the inner wall of the fixing box 2 and the mounting plate 1 respectively, a heat conducting plate 13 is in contact with the circuit board 3, the heat conducting plate 13 is made of a heat conducting silica gel material, and a drying plate 14 is in contact with the heat conducting plate 13, the drying plate 14 is a lime plate, the drying plate 14 contacts with the inner wall of the fixing box 2, the fixing box 2 is contacted with an upper cover 16, the upper cover 16 is provided with a heat conducting rod 15, the heat conducting rod 15 is made of a heat conducting silica gel material, the heat conducting rod 15 penetrates through the drying plate 14 and contacts with the heat conducting plate 13, the upper cover 16 is provided with a sealing ring 17, the sealing ring 17 is respectively contacted with the inner walls of the drying plate 14 and the fixing box 2, a clamping block 18 is fixedly connected to the sealing ring 17, the clamping block 18 is made of a rubber material, and the clamping block 18 is clamped with the inner wall of the fixing box 2.

Referring to fig. 1 and 2, a through hole 7 is formed on the connecting rod 6, and the fixing rod 5 is slidably connected inside the through hole 7. By designing the through hole 7, the fixing rod 5 can slide in the through hole 7.

Referring to fig. 1 and 2, one end of the spring 8 contacts the mounting plate 1, and the other end of the spring 8 contacts the connecting rod 6. By designing the spring 8 such that the force of the spring 8 acts on the connecting rod 6.

Referring to fig. 1 and 2, a through groove 10 is formed on the fixing box 2, and a limiting block 11 is slidably connected inside the through groove 10. Through the through groove 10, the limiting block 11 can slide in the through groove 10.

Referring to fig. 1 and 2, the number of the heat conduction rods 15 is multiple, and the multiple heat conduction rods 15 are uniformly distributed on the upper cover 16. By designing the heat conduction rod 15, an absorption effect on heat can be obtained.

Referring to fig. 1, 2 and 3, a locking groove 19 is formed on an inner wall of the fixing box 2, and a locking block 18 is locked inside the locking groove 19. The sealing ring 17 can be fixed by designing the clamping of the clamping groove 19 and the clamping block 18.

The utility model discloses the concrete implementation process as follows: when the circuit board 3 is required to be installed, the fixing block 9 is pulled outwards, the fixing block 9 drives the limiting block 11 to move, the limiting block 11 drives the lug 12 to move, the lug 12 is accommodated in the through groove 10, the connecting rod 6 is driven to extrude the spring 8 while the fixing block 9 moves, then the circuit board 3 is placed in the fixing box 2, then the fixing block 9 is pushed inwards, the fixing block 9 drives the limiting block 11 to move, the limiting block 11 drives the lug 12 to move, the lug 12 is in contact with the circuit board 3, the spring 8 is still in a compression state, the fixing block 9 is tightly attached to the fixing box 2, a sealing effect can be achieved on the through groove 10, a limiting and fixing effect can be achieved on the circuit board 3, the installation mode of the circuit board 3 is enabled to be more convenient, then the heat conducting plate 13 is placed at the upper end of the circuit board 3, and then the drying plate 14 is placed at the upper end of the heat conducting plate 13, then place upper cover 16 on fixed box 2, and push down upper cover 16, upper cover 16 drives sealing washer 17 and inserts in fixed box 2, sealing washer 17 drives fixture block 18 and removes, make fixture block 18 insert in draw-in groove 19, the installation to circuit board 3 has been accomplished promptly, and the effect through dry plate 14, can play a drying effect to fixed box 2 inside, thereby can effectively prevent circuit board 3 damage by making damp, through the effect of heat-conducting plate 13 with heat conduction pole 15, can play an absorption effect to the heat of circuit board 3, through the contact of heat conduction pole 15 with the outside air, thereby reach the radiating effect to circuit board 3, can effectively prevent that circuit board 3 from overheated its normal use of influence.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a miniaturized anti-interference radio frequency receiving circuit module, includes mounting panel (1), its characterized in that: the fixing device is characterized in that a fixing box (2) is fixedly connected onto the mounting plate (1), a sliding groove (4) is formed in the mounting plate (1), a fixing rod (5) is fixedly connected into the sliding groove (4), a connecting rod (6) is sleeved on the outer side of the fixing rod (5) in a sliding manner, a spring (8) is arranged on the outer side of the fixing rod (5), a fixing block (9) is fixedly connected onto the connecting rod (6), the fixing block (9) is in contact with the fixing box (2), a limiting block (11) is fixedly connected onto the fixing block (9), the limiting block (11) is in sliding connection with the fixing box (2), a convex block (12) is fixedly connected onto the limiting block (11), a circuit board (3) is in contact with the convex block (12), the circuit board (3) is in contact with the inner wall of the fixing box (2) and the mounting plate (1) respectively, a heat conducting plate (13) is in contact with the circuit board (3), the heat-conducting plate (13) is upper contacted with a drying plate (14), the drying plate (14) is contacted with the inner wall of a fixed box (2), the fixed box (2) is upper contacted with an upper cover (16), the upper cover (16) is provided with a heat-conducting rod (15), the heat-conducting rod (15) penetrates through the drying plate (14) and is contacted with the heat-conducting plate (13), the upper cover (16) is provided with a sealing ring (17), the sealing ring (17) is respectively contacted with the inner wall of the drying plate (14) and the fixed box (2), the sealing ring (17) is upper fixedly connected with a clamping block (18), and the clamping block (18) is clamped with the inner wall of the fixed box (2).

2. The miniaturized, interference-free radio frequency receiver circuit module of claim 1, wherein: a through hole (7) is formed in the connecting rod (6), and a fixing rod (5) is connected to the inside of the through hole (7) in a sliding mode.

3. The miniaturized, interference-free radio frequency receiver circuit module of claim 1, wherein: one end of the spring (8) is in contact with the mounting plate (1), and the other end of the spring (8) is in contact with the connecting rod (6).

4. The miniaturized, interference-free radio frequency receiver circuit module of claim 1, wherein: a through groove (10) is formed in the fixed box (2), and a limiting block (11) is connected to the inside of the through groove (10) in a sliding mode.

5. The miniaturized, interference-free radio frequency receiver circuit module of claim 1, wherein: the number of the heat conducting rods (15) is multiple, and the heat conducting rods (15) are uniformly distributed on the upper cover (16).

6. The miniaturized, interference-free radio frequency receiver circuit module of claim 1, wherein: a clamping groove (19) is formed in the inner wall of the fixing box (2), and a clamping block (18) is clamped inside the clamping groove (19).