CN212301613U

CN212301613U - Multichannel circuit board structure for battery detection

Info

Publication number: CN212301613U
Application number: CN202020124435.8U
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: 2021-01-05
Anticipated expiration: 2030-01-20

Abstract

The utility model belongs to the technical field of the battery test circuit structure, specifically provide a multichannel circuit board structure for battery test, heat dissipation channel including PCB board and a plurality of transverse arrangement, be equipped with a plurality of edges on the PCB board the MOS pipe mounting groove of heat dissipation channel's axial arrangement, heat dissipation channel one end and external intercommunication, the other end communicates with each other, adjacent two with MOS pipe installation position be equipped with the heat-proof slot between the MOS pipe mounting groove. On one hand, the MOS tube generates heat in the working process, and the heat exchanges heat with the outside through the heat dissipation channel to achieve the purpose of heat dissipation; on the other hand, the heat-insulating groove separates two adjacent MOS pipes, prevents that high-precision MOS pipe dispels the heat each other and influences the working property each other. The mounting structure improves the independence and consistency among the battery detection channels and improves the detection precision of the device.

Description

Multichannel circuit board structure for battery detection

Technical Field

The utility model belongs to the technical field of the battery test circuit structure, concretely relates to multichannel circuit board structure for battery test.

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, and simultaneously, a plurality of working components are arranged, especially when a plurality of MOS (metal oxide semiconductor) tubes are arranged, the heat productivity is large and the heat generation is concentrated. The heat among the MOS tubes can be exchanged, and the long time can affect the working state of each other. Therefore, due to the fact that the structural design of the circuit board is unreasonable, electronic components are heated too fast, heat dissipation is slow, local high temperature is formed, the electronic components are damaged, the detection precision of the device is reduced, and the detection consistency cannot be guaranteed.

Disclosure of Invention

The utility model aims at overcoming among the prior art multichannel battery detects with the difficult problem of MOS pipe heat dissipation on the circuit board.

Therefore, the utility model provides a multichannel is circuit board structure for battery test, heat dissipation channel including PCB board and a plurality of transverse arrangement, be equipped with a plurality of edges on the PCB board the MOS pipe mounting groove that heat dissipation channel's axial was arranged, heat dissipation channel one end and external intercommunication, the other end communicates with each other, adjacent two with MOS pipe installation position be equipped with the heat-proof slot between the MOS pipe mounting groove.

Preferably, a heat insulation block is embedded in the MOS tube heat insulation groove, and the height of the heat insulation block is higher than that of the MOS tube.

Preferably, a fan for sucking and exhausting hot air on the PCB is disposed at the rear end of the heat dissipation channel.

Preferably, the PCB support is further included and comprises a PCB supporting plate and a separation plate, the PCB is connected with the PCB supporting plate through bolts, a plurality of ventilation holes are transversely formed in the separation plate, and the ventilation holes and the fan are communicated to form the heat dissipation air duct.

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

Preferably, the PCB backup pad goes up the fretwork and is equipped with a plurality of edges the ventilation window of the axial parallel arrangement in ventilation hole, and the MOS pipe on the PCB board is located directly over the ventilation window.

Preferably, each of the ventilation windows corresponds to a MOS transistor on the PCB one to one.

Preferably, the heat insulation groove penetrates through the PCB, and the length of the heat insulation groove is greater than that of the MOS transistor.

Preferably, a plurality of heat insulation grooves which are arranged in parallel with the axial direction of the heat dissipation channel are arranged between two adjacent MOS tube installation grooves.

The utility model has the advantages that: the utility model provides a circuit board structure for multichannel battery testing, heat dissipation channel including PCB board and a plurality of transverse arrangement, be equipped with a plurality of edges on the PCB board the MOS pipe mounting groove that heat dissipation channel's axial was arranged, heat dissipation channel one end and external intercommunication, the other end communicates with each other, adjacent two with MOS pipe installation position be equipped with the heat-proof slot between the MOS pipe mounting groove. On one hand, the MOS tube generates heat in the working process, and the heat exchanges heat with the outside through the heat dissipation channel to achieve the purpose of heat dissipation; on the other hand, the heat-insulating groove separates two adjacent MOS pipes, prevents that high-precision MOS pipe dispels the heat each other and influences the working property each other. The mounting structure improves the independence and consistency among the battery detection channels and improves the detection precision of the device.

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

Drawings

Fig. 1 is a front end perspective view of the entire device of the multi-channel battery test circuit board structure of the present invention;

fig. 2 is a rear end perspective view of the entire device of the multi-channel battery test circuit board structure of the present invention;

FIG. 3 is an internal structure diagram of the whole device of the multi-channel circuit board structure for battery inspection of the present invention;

FIG. 4 is a schematic structural diagram of the multi-channel circuit board for battery detection of the present invention;

FIG. 5 is a PCB pattern drawing of the multi-channel battery testing circuit board structure of the present invention;

fig. 6 is a schematic diagram of the PCB support structure of the circuit board structure for multi-channel battery detection of the present invention.

Description of reference numerals: the main frame 1, the front panel 2, the upper cover plate 3, fixed lug piece 4, upper cover plate mounting bolt 5, lower cover plate 6, lower cover plate mounting bolt 7, power socket 8, fan outlet 9, the air intake 10, first MOS pipe mounting groove 11, second MOS pipe mounting groove 12, third MOS pipe mounting groove 13, fourth MOS pipe mounting groove 14, fifth MOS pipe mounting groove 15, sixth MOS pipe mounting groove 16, seventh MOS pipe mounting groove 17, eighth MOS pipe mounting groove 18, first heat-insulating groove 111, second heat-insulating groove 122, third heat-insulating groove 133, fourth heat-insulating groove 155, fifth heat-insulating groove 166, sixth heat-insulating groove 177, PCB backup pad 19, division board 20, ventilation hole 21, ventilation window 22, PCB board 23.

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 is circuit board structure for battery test, as shown in fig. 1 to fig. 6, including PCB board 23 and a plurality of transverse arrangement's heat dissipation channel, be equipped with a plurality of edges on PCB board 23 the MOS pipe mounting groove that heat dissipation channel's axial was arranged, heat dissipation channel one end and external intercommunication, the other end communicates with each other, adjacent two with MOS pipe installation position be equipped with the heat-proof slot between the MOS pipe mounting groove. Therefore, the PCB 23 is located at the upstream of the heat dissipation channel, cold air enters from the air inlet 10 at the front end, and then the heat of the MOS tube and the electronic components thereof is taken away and exhausted through the upper part of the MOS tube installation groove. Each battery detection channel corresponds to a longitudinal array of MOS tubes, the MOS tubes are transversely arranged in sequence, and the adjacent two MOS tubes are separated by a heat insulation groove, so that the heat exchange of the MOS tubes through the PCB 23 is prevented to the maximum extent. Therefore, the heat flow direction is longitudinal, the MOS tube or other electronic components beside the heat pipe can not be influenced by the self transverse movement, and the heat pipe longitudinally flows at the first time after self heating and is discharged through the heat dissipation channel. Specifically, as shown in fig. 4 and 5, an 8-channel battery detection circuit structure is provided. The PCB 23 is provided with a first MOS transistor mounting groove 11, a second MOS transistor mounting groove 12, a third MOS transistor mounting groove 13, a fourth MOS transistor mounting groove 14, a fifth MOS transistor mounting groove 15, a sixth MOS transistor mounting groove 16, a seventh MOS transistor mounting groove 17, an eighth MOS transistor mounting groove 18, a first heat insulating groove 111, a second heat insulating groove 122, a third heat insulating groove 133, a fourth heat insulating groove 155, a fifth heat insulating groove 166, and a sixth heat insulating groove 177 which are arranged in a row in the transverse direction. Wherein the heat insulation slots and the MOS tube mounting slots are arranged alternately.

Preferably, a heat insulation block is embedded in the MOS tube heat insulation groove, and the height of the heat insulation block is higher than that of the MOS tube. The heat insulation blocks are made of heat insulation materials, and the whole MOS tube is isolated from the space from top to bottom, so that heat exchange between two adjacent MOS tubes is further prevented.

Preferably, a fan for sucking and exhausting the hot air on the PCB 23 is disposed at the rear end of the heat dissipation channel. Still include the PCB support, the PCB support includes PCB backup pad 19 and division board 20, PCB board 23 with 19 bolted connection of PCB backup pad, transversely be equipped with a plurality of ventilation holes 21 on the division board 20, ventilation hole 21 and fan intercommunication form the heat dissipation wind channel. As shown in fig. 3, the fan is located at the fan outlet 9 at the rearmost end, and under the suction action of the fan, cold air enters from the air inlet 10, passes through the PCB 23 near the front end of the mounting box, cools and exchanges heat between the MOS transistors and other electronic components on each battery detection channel on the PCB 23, and then the heat passes through the vent 21 and is exhausted by the fan.

Preferably, a gap is formed between the PCB supporting bottom plate and the PCB 23, and the vent hole 21 is communicated with the gap. As shown in fig. 4, the PCB 23 is mounted in the air, so that air flows can be formed on both front and back sides of the PCB 23, and heat on both sides can be discharged through the vent holes 21.

Preferably, a plurality of ventilation windows 22 arranged in parallel along the axial direction of the ventilation holes 21 are hollowed out on the PCB supporting plate 19, and the MOS transistor on the PCB 23 is located right above the ventilation windows 22. As shown in fig. 4 and 6, when the blower fan located at the rear end of the ventilation hole 21 sucks, on the one hand, the cool air passes over the front surface of the PCB 23 in the longitudinal direction and passes through the ventilation hole 21, and on the other hand, the cool air flowing upward from the lower louver 22 passes over the rear surface of the PCB 23 in the longitudinal direction. The upper and lower cold air takes away the heat of the positive and negative two sides of the PCB board 23 respectively, so that the heat dissipation efficiency of the PCB board 23 is improved, especially the cooling of the MOS tube on the PCB board 23 is accelerated, the duration of the MOS tube is prolonged, and the service life of the whole PCB board 23 is prolonged.

In a preferred embodiment, each of the ventilation windows 22 corresponds to a MOS transistor on the PCB 23. One ventilation window 22 is arranged below each MOS tube, and cold air entering from the lower part of the ventilation window 22 firstly contacts the lower part of the MOS tube. The cold air firstly takes away the heat of the MOS tube. Because the MOS transistor generates heat more severely, it is preferable to cool the MOS transistor.

Preferably, the heat insulation slot penetrates through the PCB 23, and the length of the heat insulation slot is greater than that of the MOS transistor. And a plurality of heat insulation grooves which are arranged in parallel with the axial direction of the heat dissipation channel are arranged between every two adjacent MOS tube mounting grooves. As shown in fig. 5, two heat insulation slots are longitudinally distributed, or may be a long heat insulation slot, and the heat insulation slots play a role in heat insulation and can also reduce the weight.

As shown in fig. 1 to 3, the embodiment of the utility model provides a multichannel battery test circuit's encapsulation subassembly, including body frame 1, front panel 2, upper cover plate 3 and lower apron 6, upper end, lower extreme and the front end of body frame 1 all are equipped with the opening, upper cover plate 3 with the upper end bolted connection of body frame 1, lower apron 6 with the lower extreme bolted connection of body frame 1, front panel 2 with the front end bolted connection of body frame 1, front panel 2, upper cover plate 3 and lower apron 6 enclose to close the enclosure space who forms and be used for installing battery test circuit structure. Therefore, the main frame 1, the front panel 2, the upper cover plate 3, and the lower cover plate 6 may be assembled by bolts to enclose a closed space, and the battery detection circuit may be installed in the closed space. The main frame 1 comprises a rear plate, a left side plate and a right side plate, wherein the three plates are integrally formed to form a semi-closed space with a front end, an upper end and a lower end which are open and have a certain height. During installation, the lower cover plate 6 is installed firstly, the upper end of the lower cover plate 6 is provided with a 90-degree angle folding block, the 90-degree angle folding block is buckled on the side wall of the main frame 1, and then fastening connection is carried out through the lower cover plate installation bolt 7. And then the circuit structure and other parts are installed in the closed space. And finally, an upper cover plate 3 is installed, a 90-degree corner block is also arranged at the lower end of the upper cover plate 3, the upper cover plate 3 is fastened and connected through an installation bolt 5 of the upper cover plate 3, and the upper cover plate 3 and a lower cover plate 6 are installed in the same way. And finally, a front panel 2 is installed, and the front panel 2 is connected with two free end bolts of the front end opening of the main frame 1.

Preferably, as shown in fig. 1 to 3, the main frame 1 is a door-shaped side frame thin-wall structure, an opening at the front end of the door-shaped side frame thin-wall structure is connected with the front panel 2 through a bolt, and the rear end of the door-shaped side frame thin-wall structure is closed and is provided with a fan air outlet and a power socket 8. As shown in FIG. 5, the thin-walled structure of the door-shaped side frame is convenient for integral casting, and the casting material can be aluminum alloy or plastic. Other parts may be made of the same aluminum alloy or plastic material. The rear end of the door-shaped side frame thin-wall structure is provided with a fan outlet 9 and a power socket 8, the fan outlet 9 is used for discharging heat of an internal fan, and the power socket 8 is used for supplying power to internal electronic components. Each structure on the main frame 1 can be formed through pouring, so that the manufacturing is convenient, the cost is low, and the consistency is better.

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 multichannel circuit board structure for battery test which characterized in that: including PCB board and a plurality of transverse arrangement's heat dissipation channel, be equipped with a plurality of edges on the PCB board the MOS pipe mounting groove that heat dissipation channel's axial was arranged, heat dissipation channel one end and external intercommunication, the other end communicates with each other with MOS pipe installation position, adjacent two be equipped with the heat-proof slot between the MOS pipe mounting groove.

2. The circuit board structure for multi-channel battery inspection according to claim 1, characterized in that: and a heat insulation block is embedded in the MOS tube heat insulation groove, and the height of the heat insulation block is higher than that of the MOS tube.

3. The circuit board structure for multi-channel battery inspection according to claim 1, characterized in that: and a fan for sucking and exhausting hot air on the PCB is arranged at the rear end of the heat dissipation channel.

4. The circuit board structure for multi-channel battery inspection according to claim 3, characterized in that: still include the PCB support, the PCB support includes PCB backup pad and division board, the PCB board with PCB backup pad bolted connection, transversely be equipped with a plurality of ventilation holes on the division board, ventilation hole and fan intercommunication form heat dissipation channel.

5. The circuit board structure for multi-channel battery inspection according to claim 4, characterized in that: PCB supporting baseplate with be equipped with the clearance between the PCB board, the ventilation hole with the clearance intercommunication.

6. The circuit board structure for multi-channel battery inspection according to claim 4, characterized in that: the PCB backup pad goes up the fretwork and is equipped with a plurality of edges the ventilation window that the axial parallel arranged in ventilation hole, and the MOS pipe on the PCB board is located directly over the ventilation window.

7. The circuit board structure for multi-channel battery inspection according to claim 6, characterized in that: and each ventilation window corresponds to the MOS tube on the PCB one by one.

8. The circuit board structure for multi-channel battery inspection according to claim 1, characterized in that: the heat insulation groove penetrates through the PCB, and the length of the heat insulation groove is larger than that of the MOS tube.

9. The circuit board structure for multi-channel battery inspection according to claim 1, characterized in that: and a plurality of heat insulation grooves which are arranged in parallel with the axial direction of the heat dissipation channel are arranged between every two adjacent MOS tube mounting grooves.