CN222884681U - A portable optical time domain reflectometer - Google Patents
A portable optical time domain reflectometer Download PDFInfo
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- CN222884681U CN222884681U CN202421658765.XU CN202421658765U CN222884681U CN 222884681 U CN222884681 U CN 222884681U CN 202421658765 U CN202421658765 U CN 202421658765U CN 222884681 U CN222884681 U CN 222884681U
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Abstract
The utility model relates to the technical field of optical fiber monitoring devices, in particular to a portable optical time domain reflectometer. The utility model aims to solve the problem of poor heat dissipation performance. The portable optical time domain reflectometer comprises a shell, a main control board, an optical device, a power supply device, a heat absorption part and a heat dissipation device, wherein an installation cavity is formed in the hollow inside of the shell, an opening communicated with the installation cavity is formed in the surface of the shell, the main control board is supported in the installation cavity and is abutted to the opening, the optical device is arranged on the surface of the main control board, which is opposite to the opening, the power supply device is arranged in the installation cavity and abutted to the surface of the main control board, which is opposite to the opening, the heat absorption part covers the opening and is abutted to the main control board, the heat dissipation device is arranged on the surface of the heat absorption part, which is opposite to the main control board, the power supply device is electrically connected with the main control board, the optical device and the heat dissipation device, the heat absorption part is used for absorbing heat generated by the main control board, and the heat dissipation device is used for dissipating heat of the heat absorption part.
Description
Technical Field
The utility model relates to the technical field of optical fiber monitoring devices, in particular to a portable optical time domain reflectometer.
Background
In the aspect of optical fiber detection and maintenance, optical fiber attenuation, joint loss, optical fiber fault point positioning, optical fiber loss distribution along the length and the like are usually required to be measured by means of optical fiber detection equipment, and the optical fiber detection equipment can be applied to engineering acceptance, daily inspection, fault rush repair and stock optical cable routing general investigation.
In addition, since the optical fiber detection apparatus generally needs to include a circuit board, a laser, a power supply, and other heat generating devices, certain heat dissipation performance needs to be ensured, which may adversely affect the operation of the optical fiber detection apparatus.
Disclosure of utility model
The present utility model is directed to overcoming at least one of the above drawbacks of the prior art, and providing a portable optical time domain reflectometer to solve the problem of poor heat dissipation.
The utility model adopts the technical scheme that the portable optical time domain reflectometer comprises a shell, a main control board, an optical device, a power supply device, a heat absorption part and a heat dissipation device;
The inside of the shell is hollow to form an installation cavity, the surface of the shell is provided with an opening communicated with the installation cavity, the main control board is supported in the installation cavity and is abutted to the opening, the optical device is arranged on the surface of the main control board, which is opposite to the opening, the power supply device is arranged in the installation cavity and is abutted to the surface of the main control board, which is opposite to the opening, the heat absorption part covers the opening and is abutted to the main control board, and the heat dissipation device is arranged on the surface of the heat absorption part, which is opposite to the main control board;
The power supply device is electrically connected with the main control board, the optical device and the heat dissipation device, the heat absorption component is used for absorbing heat generated by the main control board, and the heat dissipation device is used for dissipating heat of the heat absorption component.
According to the scheme, the heat absorption part is covered on the opening of the shell, so that the heat absorption part is directly exposed to the external environment, and the external environment of the shell is relatively low in temperature compared with the inside of the shell when the portable optical time domain reflectometer works, meanwhile, the heat dissipation efficiency of the heat absorption part can be remarkably improved by means of the heat dissipation effect of the heat dissipation device on the heat absorption part, so that the main control board connected with the heat absorption part in a heat conduction manner is accelerated to cool, and then the heat dissipation efficiency of the portable optical time domain reflectometer can be obviously improved under the condition that the main control board is used as the main heat generation device of the portable optical time domain reflectometer. In addition, the heat absorption part of this scheme directly covers the opening part in casing installation cavity, plays the lid function to establish heat abstractor at the heat absorption part surface, at this moment, the inside main control board, light device and the power supply unit that only need be used for of casing, and need not to increase the lid again in addition, consequently, this scheme can also promote the miniaturization in casing space.
In some embodiments of the present utility model, the heat absorbing component is a metal heat conducting plate, and a surface of the metal heat conducting plate facing away from the opening is provided with an assembly groove, and the assembly groove is used for installing the heat dissipating device.
The metal heat-conducting plate of this scheme is as heat-absorbing member and shell open-ended closing cap, when guaranteeing to have good heat transfer performance with the main control board, still can avoid portable optical time domain reflectometer to be too big in the size of perpendicular to heat-absorbing member direction when providing the closing cap function to make portable optical time domain reflectometer compromise miniaturization and good heat dispersion. In addition, the assembly groove can protect the heat dissipation device, and the heat dissipation device is arranged on the surface of the heat absorption part in an embedded mode, so that the dimension of the portable optical time domain reflectometer in the direction perpendicular to the heat absorption part is further reduced, and the miniaturization of the whole structure is promoted.
In some embodiments of the present utility model, the heat dissipating device includes a heat dissipating fan, an air inlet is provided on a side of the assembly groove away from the metal heat conducting plate, an air outlet channel is provided on a surface of the metal heat conducting plate, and the heat dissipating fan is used for driving air to flow from the air inlet to the air outlet channel.
According to the scheme, flowing air can fully contact with the metal heat conducting plate through the air outlet channel, and heat dissipation of the metal heat conducting plate is accelerated.
In some embodiments of the utility model, the surface of the metal heat-conducting plate is provided with a fin structure.
According to the scheme, the surface area of the metal heat conducting plate exposed to the external environment is increased through the fin structure, so that the heat dissipation rate is increased.
In some embodiments of the present utility model, the fin structure includes a plurality of heat conducting strips protruding from the surface of the metal heat conducting plate, the plurality of heat conducting strips are disposed in a gap pair by pair, and the gaps between the plurality of heat conducting strips are communicated with the assembly groove to form the air outlet channel.
According to the fin structure, the heat exchange area of the metal heat-conducting plate can be increased, a channel structure is formed based on gaps between the heat-conducting strips and the surface of the metal heat-conducting plate, a port of the channel structure is communicated with the assembly groove, and the other port is positioned at the outer periphery of the metal heat-conducting plate, so that air led in by the air inlet is driven to fully contact with the metal heat-conducting plate through the channel structure, and heat dissipation of the metal heat-conducting plate is accelerated.
In some embodiments of the present utility model, the metal heat-conducting plate is embedded in the cover to cover the opening, and an air outlet communicating with the air outlet channel is formed on one side surface of the housing.
According to the scheme, the connection strength between the metal heat-conducting plate and the shell is improved, so that stable abutting connection can be maintained between the metal heat-conducting plate and the main control board to efficiently conduct heat exchange, in addition, air led in from the air inlet is guided to be fully contacted with the metal heat-conducting plate through the air outlet channel and the air outlet, and the heat dissipation efficiency of the metal heat-conducting plate is improved.
In some embodiments of the present utility model, a support structure is further disposed in the mounting cavity, the support structure is connected with the housing, the support structure supports the main control board on a side opposite to the opening, and the power supply device is assembled on a side of the support structure opposite to the opening.
This scheme provides stable support for the main control board through bearing structure, ensures to maintain stable heat conduction connection between main control board and the heat absorption part to accelerate the heat dissipation to the main control board, in addition, through bearing structure assembly power supply unit, can promote the mounting stability between the inner structure of installation cavity again, thereby improve portable optical time domain reflectometer's overall structure intensity.
In some embodiments of the utility model, the support structure comprises a support frame and a partition, the support frame is hollow and forms a support frame opening on two sides respectively, the partition is connected with the support frame body and separates the support frame openings on two sides, and the support frame is connected with the shell;
The supporting frame supports the main control board against the end face of the opening so that the partition board is abutted against the surface of the main control board, which is opposite to the opening;
the surface of the partition plate facing away from the opening is provided with the power supply device.
According to the scheme, the periphery of the main control board is mainly supported through the supporting frame, the partition board and the main control board are arranged in a propping mode, on one hand, the main control board can obtain a certain supporting effect from the partition board based on some structural parts convexly arranged on the main control board, the installation stability of the main control board is improved, on the other hand, the main control board and the partition board are further kept with gaps, and therefore heat exchange between the main control board and air in the shell is promoted, and cooling is accelerated.
In some embodiments of the present utility model, the partition plate is provided with an avoidance port, and the avoidance port is used for avoiding the optical device.
According to the scheme, the baffle is prevented from being in direct contact with the optical device through the avoidance opening, the optical device is ensured to exchange heat with air in the shell, and the wire is conveniently connected between the optical device and the power supply device through the avoidance hole.
In some embodiments of the present utility model, a limiting seat is disposed on a side of the partition facing away from the opening, and the limiting seat is embedded in at least a portion of the power supply device.
According to the scheme, the installation stability of the power supply device is improved through the limiting seat, the distance between the power supply device and the main control board is reduced in an embedded installation mode, and the portable optical time domain reflectometer is facilitated to be compact in structure, so that portability is improved.
In some embodiments of the present utility model, a supporting member is further protruding from a side of the partition facing away from the opening, the supporting member is located in the space of the limiting seat, and the supporting member supports the power supply device, so that a space is left between the power supply device and the partition.
According to the scheme, the power supply device and the partition plate are arranged at intervals, the heat exchange level of the power supply device and air in the shell can be improved, heat dissipation is promoted, and meanwhile, wires between the main control board, the optical device and the power supply device are conveniently distributed through the interval between the power supply device and the partition plate.
In some embodiments of the utility model, the housing comprises a frame portion and a cover portion, the frame portion being hollow and forming a frame portion first opening and a frame portion second opening on both sides, respectively, the frame portion first opening being the opening, the cover portion covering the frame portion second opening, the frame portion and the cover portion enclosing the mounting cavity.
The casing is formed by combining the cover part and the frame part, so that the portable optical time domain reflectometer is convenient to assemble and disassemble integrally, and the installation and maintenance efficiency is accelerated.
Compared with the prior art, the heat absorption device has the beneficial effects that the heat absorption part is covered on the opening of the shell, so that the heat absorption part is directly exposed to the external environment, meanwhile, the heat absorption efficiency of the heat absorption part can be obviously improved by virtue of the heat dissipation effect of the heat dissipation device on the heat absorption part, in addition, the heat absorption part has the function of a cover body, the heat dissipation device is arranged on the surface of the heat absorption part, the layout of the device inside the shell can be optimized, the miniaturization of the shell space is promoted, the fin structure is arranged on the surface of the heat absorption part, the heat dissipation area can be improved, the air outlet channel can be formed on the surface of the heat absorption part based on the heat conduction strip of the fin structure, and the air flowing in from the air inlet is guided to fully contact with the surface of the heat absorption part, so that the heat dissipation of the heat absorption part is accelerated.
Drawings
Fig. 1 is a block diagram of some embodiments of the utility model.
Fig. 2 is a second block diagram of some embodiments of the utility model.
FIG. 3 is an exploded view of some embodiments of the present utility model
Fig. 4 is a disassembled view of the partial structure a in fig. 3.
Fig. 5 is a disassembled view of a housing structure according to some embodiments of the present utility model.
Fig. 6 is a diagram of a support structure and an optical device according to some embodiments of the present utility model.
Fig. 7 is a block diagram of a support structure according to some embodiments of the utility model.
Fig. 8 is an assembled structure diagram of a power supply device and a support structure according to some embodiments of the present utility model.
Reference numerals are a case 100, a frame part 110, a frame part first opening 111, a frame part second opening 112, a cover part 120, an air outlet 130, a main control board 200, an optical device 300, a power supply 400, a heat absorbing member 500, a metal heat conducting plate 510, an assembly groove 520, a groove cover 530, a through hole 531, a fin structure 540, a heat conducting strip 541, an air outlet channel 550, a heat dissipating device 600, a heat dissipating fan 610, a support structure 700, a support frame 710, a partition 720, an escape opening 721, a stopper 730, a boss member 731, a support 740, and a support frame opening 750.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the utility model. For better illustration of the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and not represent the actual product size, and it will be understood by those skilled in the art that some well-known structures in the drawings and their descriptions may be omitted.
Example 1
As shown in fig. 1, 3 and 4, the present embodiment provides a portable optical time domain reflectometer, which includes a housing 100, a main control board 200, an optical device 300, a power supply device 400, a heat absorbing component 500 and a heat dissipating device 600;
The inside of the shell 100 is hollow to form a mounting cavity, the surface of the shell 100 is provided with an opening communicated with the mounting cavity, the main control board 200 is supported in the mounting cavity and is close to the opening, the optical device 300 is arranged on the surface of the main control board 200 opposite to the opening, the power supply device 400 is arranged on the surface of the mounting cavity and is close to the surface of the main control board 200 opposite to the opening, and the heat dissipation device 600 is arranged on the surface of the heat absorption part 500 opposite to the main control board 200;
The power supply device 400 is electrically connected with the main control board 200, the optical device 300, and the heat sink 600, the heat sink 500 is used for absorbing heat generated by the main control board 200, and the heat sink 600 is used for dissipating heat from the heat sink 500.
In specific implementation, the optical device 300 includes, but is not limited to, a laser amplifier, a light source, etc., and in addition, the main control board 200 may be provided with at least one of an ARM module, an MCU module, an optical filter, an optical circulator, a photodiode, etc.
During operation, since the heat absorbing component 500 covers the opening of the housing 100, the heat absorbing component 500 is directly exposed to the external environment, and since the external environment of the housing 100 has a relatively low temperature compared with the interior of the housing 100 during operation of the portable optical time domain reflectometer, the heat dissipation effect of the heat absorbing component 500 is improved by means of the heat dissipation device 600, and the heat dissipation efficiency of the heat absorbing component 500 is improved, so that the main control board 200 in heat conduction connection with the heat absorbing component 500 is accelerated to cool down. In addition, since the heat sink 500 directly covers the opening of the installation cavity of the housing 100, it can also function as a cover, and the heat sink 600 is provided on the surface of the heat sink 500, at this time, the inside of the housing 100 only needs to accommodate the main control board 200, the optical device 300 and the power supply 400, and no additional cover is required, thereby also contributing to miniaturization of the space of the housing 100.
Referring to fig. 5, in order to facilitate the loading and unloading of the housing 100 at the time of installation or maintenance, the housing 100 includes a frame portion 110 and a cover portion 120, the frame portion 110 is hollow and forms a frame portion first opening 111 and a frame portion second opening 112 at both sides, respectively, the frame portion first opening 111 serves as an opening of the housing 100, the cover portion 120 covers the frame portion second opening 112, and the frame portion 110 and the cover portion 120 enclose to form an installation cavity. It will be understood that, if the position of the first opening 111 of the frame portion is taken as the top of the frame portion 110, the second opening 112 of the frame portion can be regarded as the bottom of the frame portion 110, at this time, referring to fig. 4, the main control board 200 and the power supply device 400 are arranged in an up-down layout manner, and the main control board 200 and the power supply device 400 are closely arranged, so that the light device 300 is arranged on the lower surface of the main control board 200, and the gap between the main control board 200 and the power supply device 400 is convenient for arranging the functional units, and the heat absorbing component 500 is covered on the first opening 111 of the frame portion and thermally contacts with the upper surface of the main control board 200, at this time, the heat absorbing component 500 also serves as the top cover of the housing 100, and the cover 120 serves as the bottom cover of the housing 100, so that the two openings of the frame portion 110 can be detachably covered from the up-down direction. Meanwhile, the heat absorbing component 500, the main control board 200 and the power supply device 400 are compactly distributed from top to bottom, so that the size of the portable optical time domain reflectometer in the up-down direction is reduced. Wherein the power supply device 400 may be an energy storage battery.
Referring to fig. 2-3, in some embodiments, the heat sink 500 is a metal heat-conducting plate 510, and a surface of the metal heat-conducting plate 510 facing away from the opening is provided with a fitting groove 520, and the fitting groove 520 is used for mounting the heat sink 600. In particular, as will be understood with reference to fig. 3, the metal heat conducting plate 510 and the main control board 200 can be closely attached to each other by a connecting piece, so that the metal heat conducting plate and the main control board can maintain good heat transfer performance in a surface contact manner.
In practical application, the metal heat-conducting plate 510 is used as the heat-absorbing component 500 and the cover of the opening of the housing 100, so that good heat transfer performance with the main control board 200 can be ensured, and the portable optical time domain reflectometer can be prevented from being oversized in the direction perpendicular to the heat-absorbing component 500 based on the light and thin characteristics of the metal heat-conducting plate 510, so that the portable optical time domain reflectometer can be miniaturized and has good heat dissipation performance. In addition, the assembly groove 520 can fix and protect the heat sink 600, and the heat sink 600 is embedded on the surface of the heat sink 500, which helps to further reduce the dimension of the portable optical time domain reflectometer perpendicular to the heat sink 500.
Referring to fig. 3, the heat dissipating device 600 includes a heat dissipating fan 610, an air inlet is formed on a side of the assembly groove 520 away from the metal heat conducting plate 510, an air outlet channel 550 is formed on the surface of the metal heat conducting plate 510 and is communicated with the assembly groove 520, and the heat dissipating fan 610 is used for driving air to flow from the air inlet to the air outlet channel 550. In particular, referring to fig. 3, the assembly slot 520 is covered with a slot cover 530, and the slot cover 530 is provided with a plurality of through holes 531 as air inlets of the cooling fan 610, so that the slot cover 530 can also prevent dust and protect the cooling fan 610. Referring to fig. 2, in order to increase the heat dissipation area, the surface of the metal heat conducting plate 510 is provided with a fin structure 540, and in some embodiments, in order to give consideration to the function of the air outlet channel 550, the fin structure 540 includes a plurality of heat conducting strips 541 protruding from the surface of the metal heat conducting plate 510, the plurality of heat conducting strips 541 are disposed in a gap pair by pair, and the gaps between the plurality of heat conducting strips 541 are communicated with the assembly slot 520 to form the air outlet channel 550.
In actual operation, on the one hand, the fin structure 540 can increase the heat exchange area of the metal heat-conducting plate 510, and on the other hand, a channel structure is formed based on the gap between the heat-conducting strips 541 and the surface of the metal heat-conducting plate 510, specifically, as will be understood with reference to fig. 2, one end opening of the channel structure is communicated with the assembly slot 520, and the other end opening of the channel structure is located at the outer periphery of the metal heat-conducting plate 510, so that the air introduced into the assembly slot 520 by the air inlet is driven to fully contact with the metal heat-conducting plate 510 through the guiding function of the channel structure, that is, the channel structure plays the role of the air outlet channel 550, and heat dissipation to the metal heat-conducting plate 510 is accelerated.
Referring to fig. 1-2, in some embodiments, a metal heat-conducting plate 510 is inserted into the cover opening, and an air outlet 130 communicating with the air outlet channel 550 is opened at one side surface of the housing 100. It can be appreciated that, by adopting the embedded installation, the connection strength between the metal heat-conducting plate 510 and the housing 100 can be improved, so that the metal heat-conducting plate 510 and the main control board 200 can maintain stable contact for efficient heat exchange, and in addition, the air introduced from the air inlet is fully contacted with the metal heat-conducting plate 510 through the guiding action of the air outlet channel 550 and the air outlet 130, thereby improving the heat dissipation efficiency of the metal heat-conducting plate 510.
Referring to the drawings, in order to have better structural stability, a supporting structure 700 is further provided in the installation cavity, the supporting structure 700 is connected with the housing 100, one side of the supporting structure 700 opposite to the opening supports the main control board 200, and the side of the supporting structure 700 opposite to the opening is provided with the power supply device 400. It can be appreciated that the support structure 700 provides stable support for the main control board 200, ensures that stable heat conduction connection is maintained between the main control board 200 and the heat sink 500, so as to accelerate heat dissipation to the main control board 200, and in addition, the power supply device 400 is assembled through the support structure 700, so that connection stability between internal structures of the installation cavity can be improved, and overall structural strength of the portable optical time domain reflectometer is improved.
In particular, referring to fig. 4 and 6, the support structure 700 includes a support frame 710 and a partition board 720, the support frame 710 is hollow and forms support frame openings 750 at both sides respectively, the partition board 720 is connected with the support frame body and separates the support frame openings 750 at both sides, the support frame 710 is connected with the housing 100, the support frame 710 supports the main control board 200 opposite to the open end surface, so that the partition board 720 abuts against the surface of the main control board 200 facing away from the open, and the surface of the partition board 720 facing away from the open is provided with the power supply 400. Specifically, in combination with fig. 4 and 6, it is understood that the bottom support of the support frame 710 is disposed on the cover portion 120, the main control board 200 is fixedly connected to the top outer peripheral portion of the support frame 710, and a certain gap is disposed between the partition board 720 and the main control board 200, so that, on one hand, some structural members protruding on the main control board 200 can make the main control board 200 obtain a certain supporting effect from the partition board 720, so as to improve the installation stability of the main control board 200, and on the other hand, a gap is left between most of the main control board 200 and the partition board 720, so as to promote heat exchange between the main control board 200 and air in the casing 100, and speed up cooling.
With continued reference to fig. 6, the spacer 720 is provided with an avoidance port 721, the avoidance port 721 is used for avoiding the optical device 300, it is easy to understand that the spacer 720 is prevented from being in direct contact with the optical device 300 by the avoidance port 721, so that heat exchange between the optical device 300 and air in the housing 100 can be ensured, and in addition, a wire is convenient to be electrically connected between the optical device 300 and the power supply device 400 through the avoidance port.
Referring to fig. 7 to 8, in some embodiments of the present utility model, a limiting seat 730 is disposed on a side of the partition 720 facing away from the opening, and the limiting seat 730 is embedded into at least a portion of the power supply device 400, so that the installation stability of the power supply device 400 can be improved, and the manner of embedding and installing also reduces the space between the power supply device 400 and the main control board 200, so that the portable optical time domain reflectometer is promoted to have a compact structure, which is conducive to miniaturization of the portable optical time domain reflectometer and improvement of portability. In particular, for convenience of processing, the limiting seat 730 and the partition 720 are integrally formed, and specifically, the limiting seat 730 is formed by surrounding a plurality of protruding members 731 formed on the partition 720.
With continued reference to fig. 7, a supporting member 740 is further protruding from a side of the partition board 720 facing away from the opening, the supporting member 740 is located in the space of the limiting seat 730, the supporting member 740 supports the power supply device 400, so that a space is reserved between the power supply device 400 and the partition board 720, the supporting member 740 enables the power supply device 400 and the partition board 720 to be arranged at a distance, the heat exchange level between the power supply device 400 and air in the shell 100 can be improved, heat dissipation of the power supply device 400 is promoted, and meanwhile, wires between the main control board 200, the optical device 300 and the power supply device 400 are conveniently distributed through the space between the power supply device 400 and the partition board 720. In specific implementation, a certain length of optical fiber wire needs to be laid out in the portable optical time domain reflectometer, and in order to achieve regular layout, a winding component is further arranged in the embodiment and used for winding the optical fiber wire. In order to simplify the structural layout in the housing 100, the supporting member 740 is configured to be in a convex shape, so that it can be used as a winding member, and at this time, most of the optical fiber is wound in the space of the limiting seat 730, thereby further promoting the compact layout in the installation cavity.
It should be understood that the foregoing examples of the present utility model are merely illustrative of the present utility model and are not intended to limit the present utility model to the specific embodiments thereof. Any modification, equivalent replacement, improvement, etc. that comes within the spirit and principle of the claims of the present utility model should be included in the protection scope of the claims of the present utility model.
Claims (10)
1. The portable optical time domain reflectometer is characterized by comprising a shell, a main control board, an optical device, a power supply device, a heat absorption part and a heat dissipation device;
The inside of the shell is hollow to form an installation cavity, the surface of the shell is provided with an opening communicated with the installation cavity, the main control board is supported in the installation cavity and is abutted to the opening, the optical device is arranged on the surface of the main control board, which is opposite to the opening, the power supply device is arranged in the installation cavity and is abutted to the surface of the main control board, which is opposite to the opening, the heat absorption part covers the opening and is abutted to the main control board, and the heat dissipation device is arranged on the surface of the heat absorption part, which is opposite to the main control board;
The power supply device is electrically connected with the main control board, the optical device and the heat dissipation device, the heat absorption component is used for absorbing heat generated by the main control board, and the heat dissipation device is used for dissipating heat of the heat absorption component.
2. The portable optical time domain reflectometer according to claim 1, wherein the heat absorbing component is a metal heat conducting plate, and a surface of the metal heat conducting plate facing away from the opening is provided with an assembly groove, and the assembly groove is used for installing the heat dissipating device.
3. The portable optical time domain reflectometer according to claim 2, wherein the heat dissipating device comprises a heat dissipating fan, an air inlet is formed in a side, away from the metal heat conducting plate, of the assembly groove, an air outlet channel communicated with the assembly groove is formed in the surface of the metal heat conducting plate, and the heat dissipating fan is used for driving air to flow from the air inlet to the air outlet channel.
4. A portable optical time domain reflectometer as in claim 3 wherein the surface of the metal heat conducting plate is provided with a fin structure.
5. The portable optical time domain reflectometer of claim 4, wherein the fin structure comprises a plurality of heat conducting strips protruding from the surface of the metal heat conducting plate, the plurality of heat conducting strips are arranged in a gap-by-gap manner, and gaps among the plurality of heat conducting strips are communicated with the assembly groove to form the air outlet channel.
6. The portable optical time domain reflectometer according to any one of claims 3-5, wherein the metal heat conducting plate is embedded in the cover cap opening, and an air outlet communicated with the air outlet channel is formed on one side surface of the housing.
7. The portable optical time domain reflectometer according to any one of claims 1-5, wherein a supporting structure is further arranged in the mounting cavity, the supporting structure is connected with the housing, the supporting structure supports the main control board on the side opposite to the opening, and the power supply device is assembled on the side of the supporting structure opposite to the opening.
8. The portable optical time domain reflectometer of claim 7, wherein the support structure comprises a support frame and a baffle, the support frame being hollow and forming support frame openings on both sides respectively, the baffle being connected to the support frame and separating the support frame openings on both sides, the support frame being connected to the housing;
The supporting frame supports the main control board against the end face of the opening so that the partition board is abutted against the surface of the main control board, which is opposite to the opening;
the surface of the partition plate facing away from the opening is provided with the power supply device.
9. The portable optical time domain reflectometer of claim 8, wherein the baffle plate is provided with an avoidance port for avoiding the optical device, and/or,
And a limiting seat is arranged on one side of the partition plate, which is opposite to the opening, and is embedded into at least one part of the power supply device.
10. The portable optical time domain reflectometer according to claim 9, wherein a supporting member is further protruding from a side of the partition plate facing away from the opening, the supporting member is located in the space of the limiting seat, and the supporting member supports the power supply device so that a space is left between the power supply device and the partition plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421658765.XU CN222884681U (en) | 2024-07-12 | 2024-07-12 | A portable optical time domain reflectometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421658765.XU CN222884681U (en) | 2024-07-12 | 2024-07-12 | A portable optical time domain reflectometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222884681U true CN222884681U (en) | 2025-05-16 |
Family
ID=95685943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421658765.XU Active CN222884681U (en) | 2024-07-12 | 2024-07-12 | A portable optical time domain reflectometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222884681U (en) |
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2024
- 2024-07-12 CN CN202421658765.XU patent/CN222884681U/en active Active
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