CN211792601U

CN211792601U - Heat dissipation air duct structure of multi-channel battery detection PCB

Info

Publication number: CN211792601U
Application number: CN202020124486.0U
Authority: CN
Inventors: 肖迪; 贾小林通; 何小月
Original assignee: Wuhan Lixing Technology Co ltd
Current assignee: Wuhan Lixing Technology Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-27
Anticipated expiration: 2030-01-20

Abstract

The utility model belongs to the technical field of the electronic components board heat dissipation, specifically provide a multichannel battery detects heat dissipation wind channel structure of PCB board, including the mounting box, the front end of mounting box is equipped with the air intake, and the rear end of mounting box is equipped with the fan, is equipped with the PCB support in the mounting box, and the PCB support is including the PCB supporting baseplate who is used for installing the PCB board and be used for the division board with PCB board and rear end power isolation, transversely is equipped with a plurality of ventilation holes on the division board, and the air intake, ventilation hole and fan communicate formation heat dissipation wind channel in proper order. Set up the ventilation hole and then form the heat dissipation wind channel with air intake and fan on the division board, the parallel setting in heat dissipation wind channel, under the suction effect of fan, outside cold air is behind the air intake, forms one on the PCB board and says that the wind channel of parallel reachs the fan discharge behind the ventilation hole, and the formation in wind channel makes cold air fast on the PCB board, improves heat exchange efficiency.

Description

Heat dissipation air duct structure of multi-channel battery detection PCB

Technical Field

The utility model belongs to the technical field of the heat dissipation of electronic components board, concretely relates to multichannel battery detects heat dissipation wind channel structure of PCB board.

Background

In the production process of the battery, the detection of the battery performance is an essential link. The electrical detection means of the battery generally comprises overcharge, overdischarge, external short circuit and forced discharge, and the detection indexes comprise internal resistance, maximum discharge current, constant current precision, battery capacity and the like. The detection method commonly used at present is that a meter pen of a manual handheld battery test instrument detects batteries one by one, and the method has low efficiency and is easy to have the phenomena of misdetection and missed detection.

At present, the service life of equipment for detecting the performance of the battery is short, mainly because the heat generated by internal electronic components cannot be dissipated in time. Especially, when the batteries are detected in batches for a long time, the power consumption is large, simultaneously, more components work, the heat productivity is large, and the heat is rapidly generated. Because the heat dispersion of equipment is poor, and structural design is unreasonable, causes equipment to generate heat fast, and the heat gives off slowly, forms local high temperature and damages electronic components to reduce the detection precision of equipment, can't guarantee the uniformity that detects.

Disclosure of Invention

The utility model aims at overcoming the slow problem of heat dissipation in the battery performance check out test set among the prior art.

Therefore, the utility model provides a multichannel battery test PCB board's heat dissipation wind channel structure, including the mounting box, the front end of mounting box is equipped with the air intake, the rear end of mounting box is equipped with the fan, be equipped with the PCB support in the mounting box, the PCB support is including the PCB supporting baseplate who is used for installing the PCB board and being used for the division board with PCB board and rear end power isolation, transversely be equipped with a plurality of ventilation holes on the division board, air intake, ventilation hole and fan communicate formation heat dissipation wind channel in proper order.

Preferably, each of the ventilation holes is oval or rectangular.

Preferably, each air inlet is oval or rectangular, and the air inlets are communicated with the ventilation holes in a one-to-one alignment manner.

Preferably, the edges of the PCB isolation plate respectively abut against the inner side walls of the mounting box.

Preferably, a gap is arranged between the PCB supporting bottom plate and the PCB, and the ventilation hole is communicated with the gap.

Preferably, a boss is arranged on the PCB support, a threaded hole is formed in the boss, the back face of the PCB abuts against the boss, and a bolt penetrates through the PCB and is screwed into the threaded hole to compress the PCB on the PCB support.

Preferably, the height of the vent hole is not less than the sum of the gap and the overall height of the PCB.

Preferably, the PCB support is made of plastic.

Preferably, the PCB board is located adjacent to the upstream of the heat dissipation duct.

The utility model has the advantages that: the utility model provides a heat dissipation wind channel structure of multichannel battery test PCB board, including the mounting box, the front end of mounting box is equipped with the air intake, the rear end of mounting box is equipped with the fan, be equipped with the PCB support in the mounting box, the PCB support is including the PCB supporting baseplate who is used for installing the PCB board and be used for the division board with PCB board and rear end power isolation, transversely be equipped with a plurality of ventilation holes on the division board, air intake, ventilation hole and fan communicate formation heat dissipation wind channel in proper order. The PCB is isolated from other electronic components by the isolating plate, and the heat is prevented from flowing back to the PCB to affect normal work. Meanwhile, the partition board is provided with the vent holes, so that the vent holes, the air inlet and the fan form a heat dissipation air channel, the heat dissipation air channels are arranged in parallel, under the suction action of the fan, after external cold air passes through the air inlet, one parallel air channel is formed on the PCB and reaches the fan to be discharged after passing through the vent holes, the cold air passes through the PCB quickly due to the formation of the air channel, and the heat exchange efficiency is improved.

The present invention will be described in further detail with reference to the accompanying drawings.

Drawings

Fig. 1 is an assembly schematic diagram of a heat dissipation air duct structure of the multi-channel battery detection PCB of the present invention;

fig. 2 is an assembly schematic diagram of the PCB support and the PCB of the heat dissipation air duct structure of the multi-channel battery detection PCB of the present invention;

fig. 3 is the utility model discloses the PCB supporting structure schematic diagram of the heat dissipation wind channel structure of multichannel battery test PCB board.

Description of reference numerals: the air conditioner comprises a mounting box 1, an air inlet 2, a fan 3, a PCB supporting base plate 4, a PCB isolation plate 5, a ventilation hole 6, a PCB 7 and a boss 8.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The embodiment of the utility model provides a multichannel battery test PCB board's heat dissipation wind channel structure, as shown in fig. 1 to fig. 3, including mounting box 1, mounting box 1's front end is equipped with air intake 2, mounting box 1's rear end is equipped with fan 3, be equipped with the PCB support in mounting box 1, the PCB support is including PCB supporting baseplate 4 that is used for installing PCB board 7 and being used for the division board with PCB board 7 and rear end power isolation, transversely be equipped with a plurality of ventilation holes 6 on the division board, air intake 2, ventilation hole 6 and fan 3 communicate in proper order and form the heat dissipation wind channel. Ambient air enters from the air inlet 2 over the PCB board 7 and then through the ventilation holes 6 to the fan 3. Therefore, the mounting box 1 is a cuboid, the front end of the mounting box 1 is provided with the air inlets 2, the fan 3 is arranged at the rear end of the fan 3, the PCB support is arranged in the middle of the fan 3, and the PCB 7 is arranged on the PCB support. The space of the mounting box 1 is divided into two by the partition board on the PCB bracket. Due to the existence of the isolation plate, the PCB 7 close to the front end of the mounting box 1 is isolated from other heating sources such as a power supply close to the rear end of the mounting box 1, and the influence of heat convection exchange among different heating sources on the working performance of each other is avoided. Be equipped with a plurality of ventilation holes 6 on the division board, under fan 3's suction effect, external cold air gets into from air intake 2, earlier through the PCB board 7 that is close to mounting box 1 front end, cools off electronic components on the PCB board 7, and rethread ventilation hole 6 arrives fan 3 after other sources that generate heat such as the power that is close to mounting box 1 rear end, takes away the heat in the source that generates heat such as PCB board 7 and power at last. Because the ventilation holes 6 are smaller and are multiple, in the process of sucking the fan 3, a heat dissipation air channel is formed, the part of the heat dissipation air channel above the PCB 7 is parallel to each other, and the air channel is narrower than the air channels near the air inlet 2 and the fan 3, so that the part of the heat dissipation air channel above the PCB 7 has higher air speed, and the heat on the PCB 7 can be taken away more efficiently. On the other hand, the PCB 7 is positioned at the upstream of the heat dissipation air duct, other heating sources such as a power supply and the like are positioned at the downstream as much as possible, and the upstream and the downstream are separated by the isolation board, so that the normal work of the PCB 7 can be effectively ensured not to be influenced by the heat of other heating sources, and the circuit safety and the service life of the PCB 7 are improved.

Preferably, each of the ventilation holes 6 has an oval or rectangular shape. As shown in fig. 1 and 3, the partition board is uniformly provided with oval vent holes 6, so that the cold air can completely cover the upper part of the whole PCB 7, and the wind speed is high. In addition, the shape and the positional arrangement of the ventilation holes 6 are mainly seen from the arrangement of the electronic components on the PCB board 7. For example, the vent holes 6 are formed in the concentrated places of the power tubes, the voltage reduction resistors and the like on the PCB 7, and the vent holes 6 are not formed in the places with smaller heat productivity or basically without heat sources, so that the heat can be concentrated and pertinently dissipated, the cold air is concentrated and passes through the upper part of the electronic component with high heat productivity at high speed, and the heat dissipation efficiency is improved.

In a preferable scheme, each of the air inlets 2 is oval or rectangular, and the air inlets 2 are communicated with the air vents 6 in a one-to-one alignment manner. As shown in fig. 1, the air inlet 2 and the air vent 6 are in one-to-one correspondence to form a plurality of parallel independent heat dissipation air ducts, which is beneficial to stable high-speed passing of air flow and better fast taking away heat.

Preferably, the edges of the PCB isolation board 5 respectively abut against the inner side walls of the mounting box 1. As shown in figure 1, PCB division board 5 supports with mounting box 1 and leans on, and better assurance cold air carries out the heat exchange through ventilation hole 6, improves ventilation hole 6's utilization ratio.

Preferably, a gap is formed between the PCB supporting bottom plate 4 and the PCB 7, and the vent holes 6 are communicated with the gap. As shown in fig. 2, the PCB 7 is not attached to the PCB support base plate 4, so that the front and back sides of the PCB 7 can be uniformly cooled.

According to the preferable scheme, a boss 8 is arranged on the PCB support, a threaded hole is formed in the boss 8, the back face of the PCB 7 abuts against the boss 8, and a bolt penetrates through the PCB 7 and is screwed into the threaded hole to press the PCB 7 onto the PCB support. As shown in fig. 2 and 3, the corner of the PCB 7 has a mounting hole, and the bolt is screwed into the threaded hole after passing through the mounting hole to press the PCB 7 against the boss 8 to form a fixation.

Preferably, the height of the vent hole 6 is not less than the sum of the gap and the overall height of the PCB 7. As shown in fig. 2, the height of the vent hole 6 is as high as possible, so that a heat dissipation air duct is formed on both the front and back sides of the PCB board 7, thereby improving heat dissipation efficiency.

In a preferred scheme, the PCB support is made of plastic. Plastics or alloys are all possible. The plastic has the functions of heat insulation and non-conductivity.

Preferably, the PCB board 7 is located near the upstream of the heat dissipation duct. The cold air firstly passes through the PCB 7 at the upstream and then passes through other heating sources at the downstream, so that the heat of the other heating sources is prevented from flowing back to the PCB 7 to influence the normal work of the PCB 7.

The above examples are merely illustrative of the present invention and do not limit the scope of the present invention, and all designs identical or similar to the present invention are within the scope of the present invention.

Claims

1. The utility model provides a heat dissipation wind channel structure of multichannel battery test PCB board, includes the mounting box, the front end of mounting box is equipped with the air intake, the rear end of mounting box is equipped with fan, its characterized in that: the PCB support is arranged in the mounting box and comprises a PCB supporting base plate used for mounting a PCB and a separation plate used for separating the PCB from a rear-end power supply, a plurality of ventilation holes are transversely formed in the separation plate, and the air inlet, the ventilation holes and the fan are sequentially communicated to form a heat dissipation air channel.

2. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1, wherein: each vent hole is oval or rectangular.

3. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1, wherein: each air inlet is oval or rectangle, just the air inlet with the ventilation hole aligns the intercommunication one by one.

4. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1, wherein: PCB supporting baseplate with be equipped with the clearance between the PCB board, the ventilation hole with the clearance intercommunication.

5. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1 or 4, wherein: the PCB support is provided with a boss, a threaded hole is formed in the boss, the back face of the PCB is abutted against the boss, and a bolt penetrates through the PCB and is screwed into the threaded hole to compress the PCB on the PCB support.

6. The heat dissipation air duct structure of the multi-channel battery detection PCB of claim 4, wherein: the height of the vent hole is not less than the sum of the gap and the overall height of the PCB.

7. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1, wherein: the PCB support is made of plastic materials.

8. The heat dissipation air duct structure of the multi-channel battery detection PCB as claimed in claim 1, wherein: the PCB is located near the upstream of the heat dissipation air duct.