CN211909272U

CN211909272U - Heat radiation structure of multi-channel battery detection PCB

Info

Publication number: CN211909272U
Application number: CN202020127998.2U
Authority: CN
Inventors: 贾小林通; 肖迪; 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: 2020-11-10
Anticipated expiration: 2030-01-20

Abstract

The utility model belongs to the technical field of electronic components board heat dissipation, specifically provide a heat radiation 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 that is used for installing the PCB board and be used for the division board of PCB board and rear end power isolation, transversely be equipped with a plurality of ventilation holes on the division board, the air intake, ventilation hole and fan communicate in proper order and form the heat dissipation wind channel, the radiator is located PCB supporting baseplate's below, and bolted connection between radiator and the PCB supporting baseplate, the air intake, radiator and fan communicate in proper order and form heat dissipation wind channel down. Under the suction effect of the fan, after external cold air passes through the air inlet, the PCB and other electronic components are cooled through the upper heat dissipation air channel and the lower heat dissipation air channel respectively, and the heat exchange efficiency is improved.

Description

Heat radiation 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 radiation 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 heat radiation 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 PCB support and radiator in the mounting box, PCB support includes the PCB supporting baseplate that is used for installing the PCB board and is used for the division board that separates PCB board and rear end power, transversely be equipped with a plurality of ventilation holes on the division board, air intake, ventilation hole and fan communicate in proper order and form the upper heat dissipation wind channel;

the radiator is located below the PCB supporting base plate, the radiator is connected with the PCB supporting base plate through bolts, and the air inlet, the radiator and the fan are sequentially communicated to form a lower radiating air channel.

Preferably, the heat sink is a heat sink, and each heat sink groove of the heat sink is parallel to the axial direction of the fan.

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 radiation 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 that is used for installing the PCB board and be used for the division board of 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 in proper order and form the heat dissipation wind channel, and the radiator is located PCB supporting baseplate's below, and bolted connection between radiator and the PCB supporting baseplate, air intake, radiator and fan communicate in proper order and form heat dissipation wind channel down. 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 isolating plate is provided with vent holes to form an upper heat dissipation air channel with the air inlet and the fan, the heat radiating fins are arranged below the PCB, and the heat below the PCB dissipates heat through the lower heat dissipation channel. Under the suction effect of the fan, after external cold air passes through the air inlet, the PCB and other electronic components are cooled through the upper heat dissipation air channel and the lower heat dissipation air channel respectively, 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 a schematic perspective view of the general assembly of the heat dissipation 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 board of the heat dissipation structure of the multi-channel battery detection PCB board of the present invention;

FIG. 3 is a schematic diagram of a PCB bracket structure of the heat dissipation structure of the multi-channel battery detection PCB of the present invention;

fig. 4 is the utility model discloses multichannel battery test PCB board's heat radiation structure's assembly looks up inner structure stereogram.

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 vent hole 6, a PCB 7, a boss 8, a power supply 9 and a radiating fin 10,

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 heat radiation structure of multichannel battery test PCB board, as shown in fig. 1-4, including mounting box 1, the front end of mounting box 1 is equipped with air intake 2, the rear end of mounting box 1 is equipped with fan 3, be equipped with the PCB support in the mounting box 1, the PCB support includes PCB supporting baseplate 4 that is used for installing PCB board 7 and the division board that is used for keeping apart PCB board 7 and rear end power 9, 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 upper heat dissipation wind channel; the radiator is located PCB supporting baseplate 4's below, just the radiator with bolted connection between the PCB supporting baseplate 4, air intake 2, radiator and fan 3 communicate in proper order and form down 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 PCB isolation board 5, the PCB 7 close to the front end of the mounting box 1 is isolated from other heating sources such as the power supply 9 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. On the one hand, the upper half space of the mounting box 1 is provided with an upper heat dissipation channel. Be equipped with a plurality of ventilation holes 6 on the division board, under the suction effect of fan 3, external cold air gets into from air intake 2, earlier through the PCB board 7 that is close to the 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 power 9 that are close to the mounting box 1 rear end, takes away the heat in the source that generates heat such as PCB board 7 and power 9 at last. On the other hand, the lower half space of the mounting box 1 has a lower heat dissipation channel. Cold air enters from the air inlet 2 and firstly passes through the radiator, the radiator is the radiating fins 10, and because the radiating grooves of the radiating fins 10 are narrow and small and are arranged in parallel, a lower radiating air duct can be formed in the process of sucking by the fan 3, so that the air speed is high when the cold air passes through the radiating fins 10, and heat on the radiating fins 10 can be taken away more efficiently. In addition, the PCB 7 is positioned at the upstream of the heat dissipation air duct, other heating sources such as the power supply 9 and the like are positioned at the downstream as much as possible, and the upstream and the downstream are separated by the partition 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 utility model has the advantages that: the utility model provides a heat radiation 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 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 radiation 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 comprises a PCB supporting bottom plate for mounting the PCB and a separation plate 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 an upper heat dissipation air channel;

2. The heat dissipation structure of a multi-channel battery test PCB as recited in claim 1, wherein: the radiator is a radiating fin, and each radiating groove of the radiating fin is parallel to the axial direction of the fan.

3. The heat dissipation structure of a multi-channel battery test PCB as recited 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 structure of a multi-channel battery test PCB as recited 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 structure of a multi-channel battery test 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 structure of a multi-channel battery test PCB as recited in 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 structure of a multi-channel battery test PCB as recited in claim 1, wherein: the PCB support is made of plastic materials.

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