CN214380907U

CN214380907U - Optical fiber converter

Info

Publication number: CN214380907U
Application number: CN202122126996.9U
Authority: CN
Inventors: 鲜睿; 殷文勇
Original assignee: Chengdu Xichen Technology Co ltd
Current assignee: Chengdu Xichen Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2021-10-08
Anticipated expiration: 2031-09-06

Abstract

The application discloses optical fiber converter, including the circuit board to and the last casing and the lower casing of lock connection in circuit board both sides, the circuit board includes the PCB board, be provided with processing unit and interface unit on the PCB board, be provided with a plurality of first through-holes on the PCB board, arbitrary first through-hole is corresponding with the heating element position of installing on the PCB board, the casing include down with go up the first apron of casing joint perhaps can dismantle the connection, be provided with a plurality of bosss on the first apron, the quantity, the shape and the size of boss all with first through-hole one-to-one. The utility model discloses a seal the installation, external radiating structure can be effectual when realizing the radiating, can also avoid the dust to enter into the inside dust siltation that causes of optical fiber converter, causes the heat and can't distribute and lead to the high temperature to communication jamming appears, the problem of crash even.

Description

Optical fiber converter

Technical Field

The utility model relates to a transmission equipment technical field especially relates to optical fiber communication transmission equipment technical field, concretely relates to optical fiber converter.

Background

The optical fiber converter is used for long-distance transmission of RS-232/422/485 serial data through an optical fiber, CAN complete conversion from an isolated CAN bus interface to the optical fiber, and CAN prolong the transmission distance of serial communication signals. The optical fiber converter is a conventional device in the field of communication transmission, and has the main function of converting optical signals and electric signals, so that the device does not generate obvious and large amount of heat in the data processing process, but the operation of the optical fiber converter is basically uninterrupted, the continuous operation time can reach several years, and the heat accumulated in the long-time operation process easily causes the instability of the device operation and even the phenomenon of signal jamming.

In order to solve the clamping stagnation problem caused by heating in long-time work, the conventional optical fiber converter is usually provided with a ventilation and heat dissipation hole on a shell. Most commonly, small holes such as strips or circles are formed in the outer shell to achieve heat exchange between the inside and the outside of the optical fiber converter, so as to achieve the purpose of heat dissipation. But through the mode of windowing, though can realize slow heat exchange, reach radiating purpose, can reduce at a great extent even avoid because of the jamming that the temperature rise siltation brought, the phenomenon of halting, but along with the extension of time, the dust can be continuous enters into inside the optical fiber converter through the louvre, and continuous attached to on the circuit board, along with the dust subsides more, the heating element and parts heat dissipation on the circuit can be difficult more, finally lead to the louvre can't reach radiating function in later stage, has become the passageway that the dust got into on the contrary, thereby the follow-up jamming of equipment, the chance of halting has been increased.

SUMMERY OF THE UTILITY MODEL

In order to solve present fiber converter along with the live time in long-time use longer, inside deposit can lead to the heat siltation to rise with adnexed dust more and lead to the communication jamming, the problem of equipment crash even, this application provides a fiber converter, has adopted a brand-new casing radiating mode, realizes the external brand-new structure of heat abstractor, has effectually overcome and has used the radiating problem of dust siltation influence for a long time.

The utility model discloses difference before with current casing windowing mode lies in:

the outer shell of the existing optical fiber converter realizes internal and external heat exchange in a mode of forming air holes or heat dissipation holes, so that the technical effect of heat dissipation and temperature reduction is achieved; however, because there is no fully enclosed, the more dust that enters the fiber optic converter over time, the more dust that adheres to the circuit board, making it more difficult to dissipate heat from the circuit board. And the utility model discloses an external mode of heat radiation structure can make the circuit board realize totally closed installation, and the dust can't enter into optical fiber converter inside to make optical fiber converter can not appear the heat dissipation difficulty along with the lengthening of live time, lead to the phenomenon of jamming or crash.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

the utility model provides an optical fiber converter, includes the circuit board to and the last casing and the lower casing of lock connection in circuit board both sides, the circuit board includes the PCB board, be provided with processing unit and interface unit on the PCB board, be provided with a plurality of first through-holes on the PCB board, arbitrary first through-hole is corresponding with the heating element position of installing on the PCB board, the casing include down with go up the first apron of casing joint perhaps can dismantle the connection, be provided with a plurality of bosss on the first apron, the quantity, the shape and the size of boss all with first through-hole one-to-one.

Preferably, the lower shell further comprises a second cover plate arranged in parallel with the first cover plate, and a plurality of parallel radiating fins are fixedly connected between the first cover plate and the second cover plate.

Preferably, the interface unit comprises an isolated CAN bus interface, an optical fiber interface and a power interface which are arranged on the PCB, the power interface consists of a plurality of independent wiring holes, and a compression screw rod is arranged on any wiring hole.

In order to promote optical fiber interface's compatibility, make the utility model discloses can compatible current mainstream optical fiber interface on the market, adopt multiple optical fiber interface setting very much, preferably, optical fiber interface includes SC optical fiber interface, ST optical fiber interface and FC optical fiber interface. The SC optical fiber interface, the ST optical fiber interface and the FC optical fiber interface are independently arranged optical fiber interfaces, and any optical fiber interface CAN realize signal conversion with an isolated CAN bus interface.

In order to take account of the airtight installation between the circuit board and the shell, the following structural design is particularly adopted, preferably, a notch is arranged at the side wall of any end of the upper shell, one end of the first cover plate is fixedly connected with a side plate which is adaptive to the notch, and a second through hole for accommodating and installing the optical fiber interface is arranged on the side plate; and a second through hole for accommodating the isolated CAN bus interface and the power supply interface is formed in the side wall, opposite to the notch, of the upper shell.

For the convenience of the utility model discloses a fixed mounting, preferably, the opposite side of second apron all is provided with the installation auricle that is used for fixed fiber converter, be provided with a plurality of mounting holes that are used for installing the fastener and connect on the casing down.

Further preferably, the PCB board is further provided with an LED indicator light for indicating the working states of the isolated CAN bus interface, the optical fiber interface and the power interface, and the LED indicator light penetrates through the upper housing and extends out of the upper surface of the upper housing.

Has the advantages that:

the utility model discloses a seal the installation, external radiating structure can be effectual when realizing the radiating, can also avoid the dust to enter into the inside dust siltation that causes of optical fiber converter, causes the heat and can't distribute and lead to the high temperature to communication jamming appears, the problem of crash even.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is an axonometric view of the present invention in an assembled state.

Fig. 2 is an inverted visual isometric view of fig. 1.

Fig. 3 is an isometric view of bottom vision.

Fig. 4 is an exploded view of the structure of the present invention.

Fig. 5 is an exploded view of the reversed view of fig. 4.

Fig. 6 is an exploded view of another visual structure of fig. 4.

In the figure: 100-an upper shell; 101-notch; 200-a circuit board; 201-power interface; 202-isolated CAN bus interface; 203-SC fiber interface; 204-ST fiber interface; 205-FC fiber optic interface; 206-LED indicator light; 207-PCB board; 300-a lower housing; 301-a first cover plate; 302-a heat sink; 303-a second cover plate; 304-mounting tabs; 305-mounting holes; 306-side panels; 307-boss; 208-first via.

Detailed Description

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.

The structure and the principle of the fiber converter that this application provided are simple relatively, because the improvement of this application mainly focuses on in the aspect of the structure, and its theory of operation part is present known mature technique, and the product of selling is also various, relates to and just does not do the repeated description for the improvement part, in the following with the utility model discloses a specific preferred embodiment explains.

Example 1:

with reference to the description figures 1-6 show an optical fiber converter, including circuit board 200 to and the lock is connected at last casing 100 and lower casing 300 of circuit board 200 both sides, circuit board 200 includes PCB board 207, be provided with processing unit and interface unit on the PCB board 207, be provided with a plurality of first through-holes 208 on the PCB board 207, arbitrary first through-hole 208 is corresponding with the heating element position of installing on PCB board 207, lower casing 300 include with last casing 100 joint or can dismantle the first apron 301 of connection, be provided with a plurality of bosss 307 on the first apron 301, the quantity, the shape and the size of boss 307 all with first through-hole 208 one-to-one.

The working principle is as follows:

the present embodiment has abandoned the current mode that utilizes the air to dispel the heat as heat-conducting medium completely, but utilizes the mode of contact heat conduction to utilize casing 300 to carry out the casing external heat dissipation as heat dissipation mechanism down to can realize whole circuit board 200 seal installation, avoid the entering of dust, fundamentally eliminate in the long-time use because of the dust gets into the circuit board deposit leads to the bad problem of heat dissipation. Particularly, the boss 307 integrally connected with the first cover plate 301 penetrates through the PCB 207 to contact with the bottom of the heating element mounted on the PCB 207, so that heat can be rapidly transferred to the lower housing 300 for emission in a contact heat transfer manner. Due to the adoption of contact heat transfer, the existing windowing and perforating modes can be avoided for heat dissipation, so that the problem that heat dissipation is blocked due to the fact that dust enters is completely avoided. It should be noted that, under the above structure, a proper amount of heat-conducting silicone grease or similar substances capable of improving heat-conducting efficiency may be coated on the boss 307. The number and size of the bosses 307 are completely determined by the heat generating components of the circuit board 200, which is obvious to those skilled in the art, and since the heat generating components, such as different types of chips and different external dimensions of the processing units, are different, the size of the bosses 307 is also different, and the specific arrangement scheme cannot be exhaustive, and thus detailed description is not given herein; however, whatever the size, it is ensured that a larger surface area is reliably contacted with the boss 307 as much as possible without affecting the normal operation of the heating element, so as to release heat more quickly.

In this embodiment, in order to further improve the heat dissipation effect, the lower housing 300 further includes a second cover plate 303 parallel to the first cover plate 301, and a plurality of parallel heat dissipation fins 302 are fixedly connected between the first cover plate 301 and the second cover plate 303. The number of the heat dissipation fins 302 and the thickness of the single fins can be reasonably set by those skilled in the art according to the actual heat productivity of the original, and the size setting can be larger but not smaller, so as to avoid the problem of insufficient heat dissipation.

Example 2:

the embodiment is further optimized and improved on the basis of embodiment 1, and further shown in fig. 1 to 6, the interface unit includes an isolated CAN bus interface 202, an optical fiber interface and a power interface 201 which are arranged on the PCB 207, the power interface 201 is composed of a plurality of independent wiring holes, and a compression screw is arranged on any wiring hole.

In order to promote the compatibility of optical fiber interface, make the utility model discloses can be compatible current mainstream optical fiber interface on the market, adopt multiple optical fiber interface setting very much, preferably, optical fiber interface includes SC optical fiber interface 203, ST optical fiber interface 204 and FC optical fiber interface 205. The SC optical fiber interface 203, the ST optical fiber interface 204, and the FC optical fiber interface 205 are independently arranged optical fiber interfaces, and any optical fiber interface CAN realize signal conversion with the isolated CAN bus interface 202.

In order to take account of the airtight installation between the circuit board and the housing, the following structural design is particularly adopted, preferably, a notch 101 is formed in a side wall of any end of the upper housing 100, a side plate 306 corresponding to the notch 101 is fixedly connected to one end of the first cover plate 301, and a second through hole for accommodating and installing the optical fiber interface is formed in the side plate 306; a second through hole for accommodating the isolated CAN bus interface 202 and the power interface 201 is formed in the upper housing 100 on the opposite side wall of the notch 101.

For the convenience of the fixed installation of the present invention, preferably, the opposite sides of the second cover plate 303 are provided with mounting tabs 304 for fixing the optical fiber converter, and the lower housing 300 is provided with a plurality of mounting holes 305 for mounting fasteners to connect with the upper housing 100.

Further preferably, the PCB 207 is further provided with an LED indicator 206 for indicating the working status of the isolated CAN bus interface 202, the optical fiber interface and the power interface 201, and the LED indicator 206 penetrates through the upper housing 100 and extends out of the upper surface of the upper housing 100.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides an optical fiber converter, includes circuit board (200) to and lock connects last casing (100) and lower casing (300) in circuit board (200) both sides, its characterized in that: circuit board (200) includes PCB board (207), be provided with processing unit and interface unit on PCB board (207), be provided with a plurality of first through-holes (208) on PCB board (207), arbitrary first through-hole (208) are corresponding with the heating element position of installing on PCB board (207), down casing (300) include with go up casing (100) joint or can dismantle first apron (301) of connection, be provided with a plurality of bosss (307) on first apron (301), the quantity, the shape and the size of boss (307) all with first through-hole (208) one-to-one.

2. A fiber optic converter according to claim 1, wherein: the lower shell (300) further comprises a second cover plate (303) arranged in parallel with the first cover plate (301), and a plurality of parallel radiating fins (302) are fixedly connected between the first cover plate (301) and the second cover plate (303).

3. A fiber optic converter according to claim 2, wherein: the interface unit is including setting up isolation CAN bus interface (202), optic fibre interface and power source (201) on PCB board (207), power source (201) comprise a plurality of independent wiring holes, all are provided with compression screw on the arbitrary wiring hole.

4. A fiber optic converter according to claim 3, wherein: the fiber interfaces include an SC fiber interface (203), an ST fiber interface (204), and an FC fiber interface (205).

5. An optical fiber converter according to claim 4, wherein: a notch (101) is formed in the side wall of any end of the upper shell (100), one end of the first cover plate (301) is fixedly connected with a side plate (306) corresponding to the notch (101), and a second through hole used for accommodating and installing the optical fiber interface is formed in the side plate (306); and a second through hole for accommodating the isolated CAN bus interface (202) and the power supply interface (201) is formed in the upper shell (100) and is positioned on the opposite side wall of the notch (101).

6. An optical fiber converter according to claim 5, wherein: mounting lugs (304) for fixing the optical fiber converter are arranged on the opposite sides of the second cover plate (303), and a plurality of mounting holes (305) for mounting fasteners to be connected with the upper shell (100) are arranged on the lower shell (300).

7. A fiber optic converter according to claim 3, wherein: the PCB (207) is further provided with an LED indicator lamp (206) used for indicating the working states of the isolated CAN bus interface (202), the optical fiber interface and the power interface (201), and the LED indicator lamp (206) penetrates through the upper shell (100) and extends out of the upper surface of the upper shell (100).