High-frequency head anti-inductive lightning protector
By designing a high-frequency head anti-induction lightning protector, using 2pF capacitors and thermistors to protect the high-frequency head, the problem of damage to the high-frequency head in harsh environments is solved, and the effect of reducing maintenance costs and ensuring rural radio and television services is achieved.
Patent Information
- Application Number
- CN202421329580.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-12
AI Technical Summary
High-frequency heads are easily damaged in harsh climates, especially when there is no lightning protection element, and the internal three-end voltage stabilization tube is easily overheated and burned out, resulting in high maintenance costs and affecting the rural construction and radio and television listening and watching of rural residents.
A high-frequency head anti-inductive lightning protector is designed to send the signal of the high-frequency head to the receiver through two 2pF capacitors and thermistors. When the induction current generated by the induction light exceeds 0.25A or the induction voltage exceeds 18V, the thermistor and voltage-regulating diode will be broken down to protect the high-frequency head.
Effectively prevent high-frequency heads from being damaged by lightning strikes and overheating, reduce maintenance costs, and ensure that rural residents can listen and watch radio and television normally.
Smart Images
Figure CN222721133U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of anti-inductive lightning protection, in particular to a high-frequency head anti-inductive lightning protector. Background Art
[0002] In the process of watching TV programs, whenever encountering severe climatic environment, such as severe convective weather, lightning, strong wind or hail and other natural disasters, the damage rate of the high-frequency head is relatively high. The reasons for its damage are: first, there is no lightning protection component and it is often struck by lightning; second, the three-terminal voltage regulator tube inside it is often easy to overheat due to the large voltage drop and burn out the high-frequency head. At present, it costs a lot to replace a new high-frequency head. The maintenance cost is too high, which not only hinders the smooth implementation of the village-to-village communication project, but also makes it impossible for the vast rural people to listen to and watch radio and television normally. For this reason, it is urgent to provide a high-frequency head anti-inductive lightning protector. Utility Model Content
[0003] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0004] Therefore, the purpose of the utility model is to provide a high-frequency head anti-inductive lightning protector, which sends the signal of the high-frequency head to the receiver through two 2pF capacitors and a thermistor. When the induced current generated by the induced lightning exceeds 0.25A, the thermistor will be broken down, and when the induced voltage generated by the induced lightning exceeds 18V, the voltage-regulating diode will be broken down, thereby protecting the high-frequency head.
[0005] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:
[0006] High-frequency head induction lightning protector, including:
[0007] A bottom frame is used as a connection base frame, a cover plate is connected to the top of the bottom frame, an installation chamber is formed between the cover plate and the bottom frame, and a connection groove is opened in the bottom frame;
[0008] The protective circuit board is embedded in the chassis to provide an anti-inductive lightning protection circuit and protect the overall high-frequency head;
[0009] A signal distributor is connected in the connection slot and connected to the protection circuit board;
[0010] The wire fixing component is placed on the outside of the chassis to assist in limiting and fixing the external wiring.
[0011] As a preferred solution of the high-frequency head induction lightning protector described in the utility model, two groups of limit plates are symmetrically connected in the connecting groove, a connecting plate abutting against the limit plates up and down is connected to the outside of the signal distributor, and a limit spring is connected between the corresponding two groups of limit plates in the connecting groove.
[0012] As a preferred solution of the high-frequency head induction lightning protector described in the utility model, a fixing groove is opened on the inner side of the base frame corresponding to the end of the connecting groove, a connecting seat is clamped on the fixing groove, and a wiring port is opened in the central position of the connecting seat.
[0013] As a preferred solution of the high-frequency head induction lightning protector described in the utility model, wherein: elastic buckles are connected to the four end corners of the top of the base frame, and a groove that is engaged with the elastic buckle is opened at the bottom of the cover plate.
[0014] As a preferred solution of the high-frequency head induction lightning protector described in the utility model, the wire fixing component includes a connecting sleeve connected to the outside of the base frame and arranged corresponding to the wiring port, the outside of the connecting sleeve is connected to the threaded seat, the outside of the threaded seat is connected to multiple groups of elastic clamps in a cross shape, and a locking nut is screwed on the threaded seat, and the elastic clamp is deformed synchronously with the action of the locking nut.
[0015] As a preferred solution of the high-frequency head anti-inductive lightning protector described in the utility model, wherein: the side walls of the multiple groups of elastic clamps facing each other are bonded with rubber pads, and the outer side of the rubber pads are provided with multiple groups of anti-slip stripes.
[0016] As a preferred solution of the high-frequency head induction lightning protector described in the utility model, the bottom of the base frame is connected to a connecting frame, the top of the connecting frame is integrally formed with a socket, and the bottom of the base frame is provided with a slot that is engaged with the socket.
[0017] Compared with the prior art, the utility model has the following beneficial effects:
[0018] 1. The signal of the high-frequency head is sent to the receiver through two 2pF capacitors and thermistor. When the induced current generated by the induced lightning exceeds 0.25A, the thermistor will be broken down. When the induced voltage generated by the induced lightning exceeds 18V, the voltage-stabilizing diode will be broken down, thereby protecting the high-frequency head;
[0019] 2. The limit plate is set to cooperate with the connecting plate to fix the signal distributor. When moving, the signal distributor presses the limit spring piece, and the limit spring piece returns to its original state after deformation, further limiting the position of the signal distributor, making it convenient to disassemble and fix the signal distributor;
[0020] 3. Rotate the locking nut to lock the external wiring with the elastic clamp to prevent the wiring from shaking during use, thereby detaching from the interface and affecting subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 For this utility model Figure 1 Schematic diagram of the internal structure;
[0024] Figure 3 For this utility model Figure 2 Schematic diagram of explosion structure;
[0025] Figure 4 For this utility model Figure 1 Schematic diagram of some structures;
[0026] Figure 5 This is a schematic diagram of the structure of the wire fixing component of the utility model;
[0027] Figure 6 This is a schematic diagram of the protection circuit of the protective circuit board of the utility model.
[0028] In the figure: 100 base frame, 101 card slot, 110 connecting slot, 111 limiting plate, 112 limiting spring piece, 120 fixing slot, 130 connecting seat, 131 wiring port, 140 elastic buckle, 150 cover plate, 151 embedding groove, 200 protection circuit board, 300 signal distributor, 310 connecting plate, 400 wire fixing component, 410 connecting sleeve, 420 threaded seat, 421 elastic splint, 422 rubber pad, 430 locking nut, 500 connecting frame, 510 card seat. DETAILED DESCRIPTION
[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.
[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.
[0031] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.
[0032] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.
[0033] This utility model provides a high-frequency head anti-induction lightning protector, please refer to Figure 1-6 , including a base frame 100, a protective circuit board 200, a signal distributor 300, a wire fixing component 400 and a connecting frame 500;
[0034] Please continue reading Figure 1-3 , as a bottom frame 100 connected to the base frame, a cover plate 150 is connected to the top of the bottom frame 100, an installation chamber is formed between the cover plate 150 and the bottom frame 100, and a connecting groove 110 is opened in the bottom frame 100, and a limiting spring piece 112 is connected between two sets of limiting plates 111 corresponding to the connecting groove 110, a fixing groove 120 is opened on the inner side of the bottom frame 100 corresponding to the end of the connecting groove 110, a connecting seat 130 is clamped on the fixing groove 120, and the connecting seat 130 is used to block and fix the rear side of the signal distributor 300, and a wiring port 131 is opened at the central position of the connecting seat 130, four end corners of the top of the bottom frame 100 are connected to elastic buckles 140, and the bottom of the cover plate 150 is opened with an embedding groove 151 that is clamped and matched with the elastic buckle 140;
[0035] Please continue reading Figure 2 and Figure 6 The protective circuit board 200 is embedded on the base frame 100 to provide an anti-inductive lightning protection circuit to protect the overall high-frequency head;
[0036] The signal of the high-frequency head is sent to the receiver through two 2pF capacitors and thermistor. When the induced current generated by the induced lightning exceeds 0.25A, the thermistor will be broken down. When the induced voltage generated by the induced lightning exceeds 18V, the voltage-stabilizing diode will be broken down, thereby protecting the high-frequency head.
[0037] Please continue reading Figure 2-3The signal distributor 300 is connected to the connection slot 110 and the protection circuit board 200. Two groups of limit plates 111 are symmetrically connected in the connection slot 110. The outer side of the signal distributor 300 is connected to a connection plate 310 that abuts against the limit plates 111. When connecting the signal distributor 300, align the connection plates 310 with the limit plates 111 respectively, push the signal distributor 300, clamp the connection plates 310 under the limit plates 111, and contact with the limit plates 111 to fix the signal distributor 300. When moving, the signal distributor 300 presses the limit spring sheet 112, and the limit spring sheet 112 returns to its original state after deformation, limiting the position of the signal distributor 300, which is convenient for disassembly and fixation of the signal distributor 300.
[0038] Please continue reading Figure 1 , Figure 4 and Figure 5 , the wire fixing component 400 is placed outside the base frame 100 to assist in limiting and fixing the external wiring;
[0039] The wire fixing component 400 includes a connecting sleeve 410 connected to the outside of the base frame 100 and arranged corresponding to the wiring port 131. The outside of the connecting sleeve 410 is connected to a threaded seat 420. The outside of the threaded seat 420 is connected to multiple sets of elastic clamping plates 421 in a cross shape. A locking nut 430 is screwed on the threaded seat 420. The elastic clamping plates 421 deform synchronously with the action of the locking nut 430. The side walls of the multiple sets of elastic clamping plates 421 facing each other are all bonded with rubber pads 422. The outer side of the rubber pads 422 is provided with multiple sets of anti-slip stripes (not marked in the figure);
[0040] The locking nut 330 is rotated, and the locking nut 330 moves along the outer side of the threaded seat 320, thereby locking the multiple sets of elastic clamps 321, and the external wiring is locked and fixed by the elastic clamps 321 to prevent the wiring from shaking during use, thereby detaching from the interface and affecting subsequent use;
[0041] For further information, please refer to Figure 1 , Figure 2 and Figure 4 A connecting frame 500 is connected to the bottom of the base frame 100. The connecting frame 500 serves as the connecting middle end and is connected to the connecting base surface. A card holder 510 is integrally formed on the top of the connecting frame 500. A card slot 101 for card-fitting with the card holder 510 is provided at the bottom of the base frame 100. The base frame 100 and the connecting frame 500 are assembled and matched. When in use, the position of the base frame 100 is fixed by the connecting frame 500. When inspecting, the base frame 100 can be directly removed from the connecting frame 500.
[0042] Working principle: When the utility model is in use, the signal of the high-frequency head is sent to the receiver through two 2pF capacitors and thermistors. When the induced current generated by the induced lightning exceeds 0.25A, the thermistor will be broken down. When the induced voltage generated by the induced lightning exceeds 18V, the voltage-stabilizing diode will be broken down, thereby protecting the high-frequency head. At the same time, the set limit plate 111 cooperates with the connecting plate 310 to fix the signal distributor 300, and when moving, the signal distributor 300 presses the limit spring piece 112, and the limit spring piece 112 returns to its original state after deformation, limiting the position of the signal distributor 300, which is convenient for disassembly and fixation of the signal distributor 300, and rotating the locking nut 330, the locking nut 330 moves along the outside of the threaded seat 320, and then locks the multiple sets of elastic clamps 321, and the external wiring is locked and fixed by the elastic clamps 321 to prevent the wiring from shaking during use, thereby detaching from the interface and affecting subsequent use.
[0043] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. The high-frequency head anti-inductive lightning protector is characterized by: include: A bottom frame (100) connected to a base frame, a cover plate (150) being connected to the top of the bottom frame (100), an installation chamber being formed between the cover plate (150) and the bottom frame (100), and a connection groove (110) being provided in the bottom frame (100); A protective circuit board (200) is embedded in the base frame (100) and provides an anti-induction lightning protection circuit to protect the entire high-frequency head; A signal distributor (300) is connected to the connection slot (110) and is connected to the protection circuit board (200); The wire fixing component (400) is disposed outside the base frame (100) and assists in limiting and fixing the external wiring.
2. The high-frequency head induction lightning protector according to claim 1 is characterized in that: Two groups of limit plates (111) are symmetrically connected in the connection groove (110), a connection plate (310) abutting against the limit plates (111) up and down is connected to the outside of the signal distributor (300), and a limit spring sheet (112) is connected between the two groups of limit plates (111) in the connection groove (110).
3. The high-frequency head anti-induction lightning protector according to claim 1 is characterized in that: A fixing groove (120) is provided on the inner side of the base frame (100) corresponding to the end of the connecting groove (110), a connecting seat (130) is clamped on the fixing groove (120), and a wiring port (131) is provided at the central position of the connecting seat (130).
4. The high-frequency head anti-induction lightning protector according to claim 1 is characterized in that: The four end corners of the top of the base frame (100) are all connected with elastic buckles (140), and the bottom of the cover plate (150) is provided with an embedding groove (151) that is engaged with the elastic buckle (140).
5. The high-frequency head anti-induction lightning protector according to claim 1 is characterized in that: The wire fixing component (400) comprises a connecting sleeve (410) connected to the outside of the base frame (100) and arranged corresponding to the wiring port (131); the outside of the connecting sleeve (410) is connected to a threaded seat (420); the outside of the threaded seat (420) is connected to multiple groups of elastic clamping plates (421) in a cross shape; a locking nut (430) is screwed onto the threaded seat (420); and the elastic clamping plates (421) deform synchronously with the movement of the locking nut (430).
6. The high-frequency head induction lightning protector according to claim 5 is characterized in that: The side walls of the plurality of groups of elastic clamping plates (421) facing each other are all bonded with rubber pads (422), and the outer sides of the rubber pads (422) are provided with a plurality of groups of anti-slip stripes.
7. The high-frequency head induction lightning protector according to claim 1 is characterized in that: The bottom of the base frame (100) is connected to a connecting frame (500), the top of the connecting frame (500) is integrally connected to a card holder (510), and the bottom of the base frame (100) is provided with a card slot (101) that is card-fitted with the card holder (510).