CN215266717U

CN215266717U - Base bus leading-out structure of signal SPD

Info

Publication number: CN215266717U
Application number: CN202121196627.0U
Authority: CN
Inventors: 李�赫; 李欣
Original assignee: XIAMEN TAIHANG TECHNOLOGY CO LTD
Current assignee: XIAMEN TAIHANG TECHNOLOGY CO LTD
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-21
Anticipated expiration: 2031-05-31

Abstract

The utility model belongs to circuit protection equipment, in particular to a base bus leading-out structure of a signal SPD, which is used for connecting a SPD module with external equipment and comprises a connecting end and a leading-out end, wherein the connecting end and the leading-out end are connected through a flat cable; the connecting end is connected with the SPD module; the leading-out end is provided with a plurality of spring pins penetrating out of the base and is connected with an external communication circuit through the spring pins. The utility model discloses at the limited space of ultra-thin base, constitute bus connection through the spring needle contact mode.

Description

Base bus leading-out structure of signal SPD

Technical Field

The utility model belongs to the technical field of power consumption protective equipment, concretely relates to base bus extraction structure of signal SPD.

Background

The bus is a common communication trunk for transmitting information among various functional components of the electronic equipment, and is divided into a data bus, an address bus and a control bus according to the type of the transmitted information, wherein the data bus, the address bus and the control bus are used for transmitting data, data addresses and control signals respectively. The bus is an internal structure and is provided with a general control end and a plurality of functional modules, the control end is connected with each part through the bus, and the external equipment is connected with the bus through a corresponding interface circuit, so that a hardware information transmission system is formed.

And the SPD for signal is an electronic device for connecting signals. Information flow is transmitted between electronic devices through transmission media such as cables, optical cables, radio waves, etc., and surge voltages that endanger the electronic devices are present in long transmission lines, so generally, signals SPD are used at the ports where the transmission lines are connected to the electronic devices. Compared with the SPD for the power supply, the SPD for the signal has the following characteristics: the power source transmits energy with the SPD and the signal transmits information with the SPD; the protection effect of the SPD for the power supply is judged according to the requirement of insulation fit, and the SPD for the signal is judged according to the requirement of electromagnetic compatibility surge immunity; the operating voltage of the signal SPD is mostly lower than that of the power supply SPD; the operating circuit impedance of the signal SPD is much higher than that of the power supply circuit, and the magnitude of the surge current/voltage is usually small, so that the gas discharge tube, the avalanche breakdown diode, the thyristor surge suppressor, and other elements are used in many signal SPDs. Because of the high circuit impedance, the risk of burning and shock due to short circuit failure is small, and therefore most SPDs for signals do not have disengagers.

Because the operating voltage of the signal SPD module is lower, the internal functional components can adopt the design of small volume and high grade degree, thereby reducing the thickness of the whole shell and being convenient for being arranged in the installation space of small volume. Many communication devices in the prior art need to be provided with a plurality of SPDs or other line protection devices with the same appearance specification, each protection device needs to perform data transmission with an external control unit, and if the existing flat cable design is adopted, the assembly of the communication devices is inevitably influenced, and simultaneously, the signal bus of the communication devices needs to be optimally designed.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, the utility model provides a base bus extraction structure of signal SPD aims at the structural design through miniaturized entity connecting terminal, is convenient for can realize stable and nimble bus connection when setting up side by side of a plurality of signal SPD equipment.

The utility model discloses the technical scheme who adopts does:

in a first aspect, the utility model discloses a base bus leading-out structure of signal SPD, which is used for connecting SPD module and external equipment, comprising a connecting end and a leading-out end, wherein the connecting end is connected with the leading-out end through a flat cable;

the connecting end is connected with the SPD module;

the leading-out end is provided with a plurality of spring pins penetrating out of the base and is connected with an external communication circuit through the spring pins.

Wherein worth explaining, the utility model relates to a bus extraction structure, this bus is the circuit that is used for transmitting the interior components and parts state information of SPD module, and the main circuit inserts and gets into the functional circuit of SPD module from the terminal of base, then this bus is independent communication line. Because the signal SPD is designed in a split structure, a circuit board in the SPD module is provided with metal pins for communication, and a bus in the base comprises a connecting end for being in plug-in fit with the metal pins. And the winding displacement has thinner characteristic, can arrange according to the relative position that sets up of link and leading-out terminal.

And the utility model provides a core design point then lies in the structural design who draws forth the end, compares in prior art, the utility model discloses a base is worn out to the structure of pogo pin terminal to be connected with outside equipment. The pogo pin is a metal terminal structure having a movable end portion, which is directly contacted with an external metal member surface, and is contracted by an internal spring to form a certain pressure to a contact surface when a gap is reduced, thereby achieving a stable fitting degree.

And the spring needle can not only be directly connected with an external communication line or equipment, but also be contacted with the spring needle of an adjacent base to form a serial or parallel line, so that the running state data in the SPD equipment with a plurality of signals is transmitted outwards through the bus. Compared with the existing solid flat cable design, the structure is simpler and more flexible, the occupied space is smaller, and the installation requirement of the ultrathin shell design is met.

In combination with the first aspect, the present invention provides a first embodiment of the first aspect, wherein the pogo pin has a protruding end and a static contact end, and the protruding end is in contact connection with the static contact end of an adjacent base or an external communication circuit.

By static contact, it is meant that a single pogo pin includes two ends, as described above, wherein one of the ends includes a movable portion, i.e., an extending end. This movable part is the metal material, can inwards contract, and its tip provides certain thrust through the spring compression after propping outside contact surface and makes it can laminate with outside contact surface is better. And the other end is a flat end surface, namely a static contact end. The structure has a large contact surface and also exposes the housing so that the protruding sections of adjacent pogo pins can abut against this end surface, thereby forming an electrical connection.

In combination with the first aspect, the present invention provides a second embodiment of the first aspect, wherein the terminal has a PCB board, and the pogo pin is fixed on the PCB board.

It is worth mentioning that the PCB integrates circuits, and multi-path current transmission is realized by arranging a plurality of spring pins.

In combination with the second embodiment of the first aspect, the present invention provides a third embodiment of the first aspect, wherein the connection terminal is an independent signal connection terminal, and the flat cable is connected to a pin of the signal connection terminal; the signal connection terminal is also provided with a connection hole for inserting an external pin.

In combination with the third embodiment of the first aspect, the present invention provides the fourth embodiment of the first aspect, wherein a first cavity for placing the PCB board with a plurality of pogo pins and a second cavity for fixing the signal connection terminals are provided in the base, a channel is provided between the first cavity and the second cavity for communication, and the flat cable is disposed in the channel.

In combination with the fourth embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the first chamber has an opening toward one side of the SPD module, and the connection hole of the signal connection terminal leaks out from the side opening.

With reference to the fourth embodiment of the first aspect, the present invention provides a sixth embodiment of the first aspect, wherein the base has a plurality of connecting holes communicating with the first chamber, and the connecting holes are used for a portion of the base from which the protruding end of the pogo pin extends and a portion of the base from which the protruding end of the adjacent base is inserted.

It should be noted that the SPD module mentioned in the present invention is an independent structure that is inserted and matched with the base to form a complete signal SPD module, and includes a main functional circuit therein. Because the signal SPD in the application is designed to be an ultrathin structure, the original solid circuit structure is reduced by integrating a solid circuit on a circuit board and then connecting part of components into the circuit in a surface patch packaging mode, so that the installation space is saved. Since a plurality of functional parts are provided in a conventional circuit protection device (e.g., a circuit breaker or a surge protector) to form a single or a plurality of paths, circuit protection control is achieved by penetrating a main circuit. Functional unit wherein contains heating protection component, arc extinguishing subassembly, dropout subassembly etc. still has the wire structure of entity, leads to whole equipment to have certain volume, to the condition that does not possess great installation space, then needs optimize the adjustment to equipment structure to be applicable to the installation demand in little space. The mode of the integrated circuit board is one of optimized selection, most of the solid circuits are integrated in the integrated circuit board in a mode of the printed circuit board, the size of the integrated circuit board is greatly reduced on the premise that normal conduction current can be guaranteed, the thickness of a shell with the original thickness of 9 mm and 18mm is reduced to about 6mm, and therefore the original smaller shelving space can be additionally provided with a plurality of groups of protection devices.

The utility model provides a SPD module equipment is connected with the metallic conductor of base through participating in, and has the draw-in groove of installation SPD module on the base, through with the SPD module according to realize fixed connection in the draw-in groove to but realize plug control through the buckle structure on the SPD module casing. The base is provided with a plurality of wiring terminals for connecting an external circuit and introducing the external circuit into the SPD module, and a heating protection element in the SPD module is connected in series with the circuit to realize the discharge control.

The heating protection element comprises various types of surge protection modules, including but not limited to fuses, zinc oxide varistors, discharge tubes, discharge gaps, inductance coils, TVS tubes and the like, and the devices can generate certain change when abnormal current occurs in a circuit after model selection and adaptation, or the originally conducted circuit becomes an open circuit, or the originally open circuit condition becomes a closed circuit, so that different technical effects are achieved. And the utility model discloses an still be equipped with hot tripping device in the SPD module, thereby can break off circuit when this protection component that generates heat deterioration became invalid and appear continuously leaking current harm and avoid appearing the conflagration hidden danger. However, after a single signal SPD is disconnected, the pulse current leakage protection mechanism is lost in the access circuit, so that key potential safety hazards can appear, and each signal SPD needs to be monitored in real time, so that action information can be obtained immediately and can be disposed in time.

The utility model discloses mainly be through the state information transmission that realizes single or a plurality of signal SPD equipment that set up side by side through integrated spring needle terminal structure in the narrow and small space of base. But not only outward data transmission, but also a plurality of lines can be formed, each signal SPD device is controlled in an external or remote control mode, and if a resettable tripping mechanism exists in the device, the bus can also be used for controlling resetting by arranging an automatic resetting component.

The utility model has the advantages that:

the utility model discloses a set up independent spring needle contact connected mode on neotype signal SPD base, can have comparatively simply and can arrange in a flexible way the bus structural design in the limited installation space that ultra-thin base structural design brought.

Drawings

FIG. 1 is a schematic view of an inner axial side structure of a single base structure of the present invention with a side cover plate detached;

FIG. 2 is a schematic view of the single base structure of the present invention showing the inner plane structure after the side cover plate is removed;

FIG. 3 is a schematic side view of the first shaft of the single base structure of the present invention;

FIG. 4 is a schematic second axial side view of the single base structure of the present invention;

FIG. 5 is a top view of the two base structures of the present invention disposed in close proximity;

FIG. 6 is a side-by-side arrangement diagram of two adjacent sets of pogo pins in the present invention;

fig. 7 is a schematic side view of the first shaft of the base of the present invention with the housing;

fig. 8 is a schematic diagram of the second shaft side when the base of the present invention is provided with the housing.

In the figure: 1-signal connection terminal, 2-base, 3-flat cable, 4-spring needle and 5-shell.

Detailed Description

The present invention will be further explained with reference to the drawings and the embodiments.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the application is used, the description is only for convenience and simplicity, and the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application. Furthermore, the appearances of the terms "first," "second," and the like in the description herein are only used for distinguishing between similar elements and are not intended to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present application do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Example 1:

the embodiment discloses a bus leading-out structure of a base 2 of a signal SPD, as shown in FIGS. 7 and 8, the structure of the whole signal SPD device is shown in the figure, and comprises an SPD module and the base 2, wherein the SPD module is spliced with the base 2, and locking is realized through buckle components on two sides of a shell 5 of the SPD module.

The SPD module comprises a shell 5 and a circuit board arranged in the shell 5, wherein the circuit board is provided with a protection circuit, and when an external line is connected, abnormal pulse current in the circuit can be conducted and discharged, so that electric equipment in a main circuit is protected. The heating protection element in the device may be deteriorated and failed, and heat is generated under the condition of continuous leakage current, so that fire hazard is caused. In order to avoid the above situation, a thermal trip and other reaction mechanisms are arranged in the SPD module, so that the circuit can be timely disconnected when abnormal situations such as leakage current occur.

However, since the circuit break is formed to protect the originally connected circuit, it is necessary to alarm in time after the circuit break and to achieve field maintenance and replacement in time by the worker, so a remote signaling mechanism is usually provided in the SPD device for sending the operating state information to the outside in real time. The remote signaling mechanism is provided in the SPD module, and can monitor the state of the heat generating protection element circuit inside the case 5 and immediately transmit a signal when an operation occurs. The bus lead-out structure in this embodiment is a wire for sending out the signal.

Specifically, as shown in fig. 1 to 6, the signal connector includes a signal connector 1, a flat cable 3 and a PCB, and the connector is connected to the PCB through the flat cable 3, and a plurality of pogo pins 4 are disposed on the PCB. The whole bus leading-out structure is arranged in the base 2, and fig. 1 and 2 show an internal structure diagram of the whole base 2 with a side cover plate removed. It can be seen that the base 2 is designed symmetrically, and three groups of wiring and line pressing terminals are arranged on two sides of the base and used for connecting external lines.

And a plurality of jacks are arranged in the middle of the base 2, and a metal elastic sheet is also arranged in each jack and used for crimping the inserted pins. There is a space between two of the sockets, namely a first chamber, which is used for placing the signal connection terminal 1.

The left side and the right side of the base 2 are respectively provided with a second cavity close to the wiring terminals at the lowest side, and a PCB is arranged in the second cavities. An L-shaped corner connecting groove is arranged between the first chamber and the second chamber, and a flat cable 3 is arranged in the groove.

Further, the base 2 has an opening communicating with the first chamber on an end surface near the connecting SPD module, and the opening allows the socket end surface of the signal connecting terminal 1 to be exposed. The connecting end is an independent signal connecting terminal 1, and the flat cable 3 is connected to the pin of the signal connecting terminal 1; the signal connection terminal 1 also has connection holes into which external pins are inserted.

The pogo pin 4 has an extended end and a stationary contact end, and the extended end is in contact connection with the stationary contact end of the adjacent base 2 or an external communication circuit. As can be seen, the two sides of the base 2 are provided with a plurality of openings, wherein one opening is used for exposing the static contact end, which means that the single pogo pin 4 comprises two end portions, as described above, wherein one of the end portions is a movable portion, i.e. an extending end. This movable part is the metal material, can inwards contract, and its tip provides certain thrust through the spring compression after propping outside contact surface and makes it can laminate with outside contact surface is better. And the other end is a flat end surface, namely a static contact end. This structure has a large contact surface and also exposes the housing 5 so that the protruding sections of adjacent pogo pins 4 can abut against this end surface, thereby forming an electrical connection.

The present invention is not limited to the above-mentioned alternative embodiments, and various other products can be obtained by anyone under the teaching of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the following claims, and which can be used to interpret the claims.

Claims

1. A base bus leading-out structure of signal SPD is used for connecting SPD module and peripheral equipment, its characterized in that: the connector comprises a connecting end and a leading-out end, wherein the connecting end and the leading-out end are connected through a flat cable (3);

the connecting end is connected with the SPD module;

the leading-out end is provided with a plurality of spring pins (4) penetrating out of the base (2) and is connected with an external communication circuit through the spring pins (4).

2. The base bus extraction structure of a signal SPD according to claim 1, characterized in that: the spring needle (4) is provided with an extending end and a static contact end, and the extending end is in contact connection with the static contact end of the adjacent base (2) or an external communication circuit.

3. The base bus extraction structure of a signal SPD according to claim 1, characterized in that: the leading-out end is provided with a PCB board, and the spring needle (4) is fixed on the PCB board.

4. A base bus exit structure for a signal SPD according to claim 3, characterized in that: the connecting end is an independent signal connecting terminal (1), and the flat cable (3) is connected to the pin of the signal connecting terminal (1); the signal connecting terminal (1) is also provided with a connecting hole for inserting an external pin.

5. The base bus extraction structure of a signal SPD according to claim 4, wherein: the PCB signal connecting device comprises a base (2), a first cavity and a second cavity, wherein the first cavity is used for placing a PCB board with a plurality of spring pins (4) in the base, the second cavity is used for fixing a signal connecting terminal (1), a communicating channel is arranged between the first cavity and the second cavity, and a flat cable is arranged in the channel.

6. The base bus extraction structure of a signal SPD according to claim 5, wherein: the first chamber has an opening towards one side of the SPD module from which the connection holes of the signal connection terminals (1) leak.

7. The base bus extraction structure of a signal SPD according to claim 5, wherein: the base (2) is provided with a plurality of connecting holes communicated with the first chamber, wherein the connecting holes are used for a part for extending the extending end of the spring needle (4) in the base (2) and a part for inserting the extending end of the adjacent base (2).