CN211457513U

CN211457513U - Mounting structure and circuit board of multichannel battery detection circuit board

Info

Publication number: CN211457513U
Application number: CN202020128109.4U
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: 2020-09-08
Anticipated expiration: 2030-01-20

Abstract

The utility model belongs to the technical field of the PCB board installation, specifically provide a mounting structure and circuit board of multichannel battery test circuit board. Including the PCB support, the PCB support includes PCB backup pad and PCB division board, and the PCB backup pad is perpendicular angular distribution with the PCB division board, is equipped with a plurality of ventilation holes on the PCB division board, and the fretwork is equipped with a plurality of ventilative windows of arranging along the axial parallel in ventilation hole in the PCB backup pad, and the MOS pipe on the PCB board is located ventilative window directly over. The PCB welded with the MOS tubes is arranged on the PCB supporting plate, and the MOS tubes are positioned right above the ventilation window. When the fan located at the rear end of the vent hole sucks, cool air flows upward from the lower louver while bypassing the front surface of the PCB in the longitudinal direction and passing through the vent hole, on the one hand, and bypassing the rear surface of the PCB in the longitudinal direction, on the other hand. The upper and lower cold air takes away the heat of the positive and negative two sides of the PCB respectively, so that the heat dissipation efficiency of the PCB is improved, especially the cooling of MOS tubes on the PCB is accelerated, and the service life of the whole PCB is prolonged.

Description

Mounting structure and circuit board of multichannel battery detection circuit board

Technical Field

The utility model belongs to the technical field of the PCB board installation, concretely relates to multichannel battery detects mounting structure and circuit board with circuit 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.

The service life of the existing battery performance detection equipment is short, mainly because the heat generated by the internal electronic components cannot be dissipated in time. And the PCB structure for the multi-channel battery comprises a plurality of MOS tubes which are arranged in parallel. Especially when the batteries are detected in batches for a long time, the power consumption is large, and meanwhile, more components work, especially more MOS (metal oxide semiconductor) tubes on a PCB (printed Circuit Board), the heat productivity is large and the heat is rapidly generated. Because the installation structure of the PCB is unreasonable, the heat dissipation of the PCB is slow, and local high temperature is formed around the MOS tube, so that the detection precision of the device is reduced, and the detection consistency can not be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the problem that the radiating efficiency of the PCB board of many MOS pipes is low among the prior art.

Therefore, the utility model provides a mounting structure of multichannel battery test circuit board, including the PCB support, the PCB support includes PCB backup pad and PCB division board, the PCB backup pad with the PCB division board is perpendicular angular distribution, be equipped with a plurality of ventilation holes on the PCB division board, the fretwork is equipped with a plurality of edges in the PCB backup pad 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 cross-sectional area of the ventilation window is equal to that of the MOS tube.

Preferably, the back of the PCB support plate is provided with a support column for mounting the PCB support plate in an overhead manner.

Preferably, the front surface of the PCB supporting plate is provided with a boss, a threaded hole is formed in the boss, the back surface of the PCB abuts against the boss, and a bolt penetrates through the PCB and is screwed into the threaded hole to press the PCB tightly on the PCB supporting plate.

Preferably, the height of the ventilation hole is higher than the height of a gap between the PCB support plate and the PCB.

Preferably, the edge of the PCB supporting plate is provided with a vertical plate used for blocking the horizontal longitudinal movement of the PCB, the vertical plate is provided with a horizontal clamping groove used for limiting the horizontal movement of the PCB, and the tail end of the PCB is transversely spliced with the horizontal clamping groove.

Preferably, the PCB support plate is detachably connected with the PCB isolation plate.

Preferably, the PCB support is made of plastic.

The embodiment of the utility model provides a circuit board is still provided, the circuit board includes a plurality of MOS pipes, each the MOS pipe sets up with as before the mounting structure's of multichannel circuit board for battery test ventilation window relatively.

The utility model has the advantages that: the utility model provides a mounting structure and circuit board of this kind of multichannel battery test circuit board. Including the PCB support, the PCB support includes PCB backup pad and PCB division board, the PCB backup pad with the PCB division board is vertical angle and distributes, be equipped with a plurality of ventilation holes in the PCB division board, the fretwork is equipped with a plurality of edges in the PCB backup pad 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. The PCB welded with the MOS tubes is arranged on the PCB supporting plate, and the MOS tubes are positioned right above the ventilation window. When the fan located at the rear end of the vent hole sucks, cool air flows upward from the lower louver while bypassing the front surface of the PCB in the longitudinal direction and passing through the vent hole, on the one hand, and bypassing the rear surface of the PCB in the longitudinal direction, on the other hand. The upper and lower cold air takes away the heat of the positive and negative two sides of the PCB respectively, improves the heat dissipation efficiency of the PCB, especially accelerates the cooling of the MOS tube on the PCB, prolongs the continuous working time of the MOS tube, and improves the service life of the whole PCB.

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

Drawings

Fig. 1 is a schematic front structural view of a mounting structure of a multi-channel circuit board for battery inspection according to the present invention;

FIG. 2 is a schematic view of the reverse structure of the mounting structure of the multi-channel circuit board for battery inspection of the present invention;

fig. 3 is the mounting structure of the circuit board for multi-channel battery detection and the assembly structure of the PCB board of the present invention.

Description of reference numerals: PCB backup pad 1, PCB division board 2, ventilation hole 3, ventilative window 4, boss 5, vertical riser 6, horizontal draw-in groove 7, support column 8, PCB board 9, MOS pipe welding position 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 multichannel battery detects mounting structure with circuit board, as shown in fig. 1 to fig. 3, including the PCB support, the PCB support includes PCB backup pad 1 and PCB division board 2, PCB backup pad 1 with PCB division board 2 is vertical angle and distributes, be equipped with a plurality of ventilation holes 3 on the PCB division board 2, the fretwork is equipped with a plurality of edges in PCB backup pad 1 ventilation window 4 of the axial parallel arrangement in ventilation hole 3, and the MOS pipe on the PCB board 9 is located directly over ventilation window 4. Therefore, the PCB support is of a 90-degree right-angle structure and comprises a PCB supporting plate 1 and PCB isolation plates 2, wherein the PCB supporting plate 1 is horizontally arranged, the PCB isolation plates 2 are vertically distributed, and the PCB 9 is horizontally arranged on the PCB supporting plate 1. A plurality of rows of MOS tubes are arranged on the PCB 9 along the longitudinal direction, and the right lower part of each row of MOS tubes corresponds to the ventilation window 4. When one is welding the MOS pipe, the MOS pipe can be fixed on the PCB 9 in a hollow way. Namely, the place on the PCB 9 where the MOS transistor is correspondingly mounted is hollowed out. In other implementation scenarios, the PCB 9 may further have a through hole or a ventilation slot corresponding to the place where the MOS transistor is mounted. And a hollow ventilation window 4 is matched. When the fan located at the rear end of the ventilation hole 3 sucks, cool air flows upward from the lower louver 4 while bypassing the front surface of the PCB board 9 in the longitudinal direction and passing through the ventilation hole 3 on the one hand, and bypassing the rear surface of the PCB board 9 on the other hand. The upper and lower cold air takes away the heat of the positive and negative two sides of the PCB board 9 respectively, improves the heat dissipation efficiency of the PCB board 9, especially accelerates the cooling of the MOS tube on the PCB board 9, prolongs the continuous working time of the MOS tube, and improves the service life of the whole PCB board 9.

In a preferred scheme, each ventilation window 4 corresponds to a MOS transistor on the PCB 9. As shown in fig. 1 and 3, there is a ventilation window 4 under each MOS transistor, and the cool air entering from under the ventilation window 4 first contacts the under side of the MOS transistor. 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 cross-sectional area of the ventilation window 4 is equal to that of the MOS tube. It can be seen that the cross-sectional area of the louver 4 is preferably equal to the cross-sectional area of the MOS transistor. On one hand, the cross section area of the ventilation window 4 is prevented from being too large, so that the wind speed is reduced, and on the other hand, the cross section area of the ventilation window 4 is prevented from being too small, so that the temperature of the whole MOS tube cannot be reduced to the maximum extent.

Preferably, a supporting column 8 for mounting the PCB supporting plate 1 in an overhead manner is arranged on the back surface of the PCB supporting plate 1. As shown in fig. 2, the support posts 8 are connected to the bottom surface of the housing, and the entire PCB support is supported and suspended by the support posts 8. Therefore, cold air can enter from the bottom end of the PCB supporting plate 1 and pass through the ventilation window 4 to reach the back of the PCB 9, and finally is exhausted from the ventilation hole 3, and heat exchange is completed.

According to the preferable scheme, the front face of the PCB supporting plate 1 is provided with a boss 5, a threaded hole is formed in the boss 5, the back face of the PCB 9 abuts against the boss 5, and a bolt penetrates through the PCB 9 and is screwed into the threaded hole to compress the PCB 9 on the PCB supporting plate 1. The bosses 5 serve to support the PCB 9 so that a space is formed between the rear surface of the PCB 9 and the front surface of the PCB support plate 1 for the air flow to pass through for heat dissipation.

Preferably, the height of the ventilation hole 3 is higher than the height of the gap between the PCB support plate 1 and the PCB 9. As shown in fig. 3, the height of the vent hole 3 is as high as possible, so that a heat dissipation air duct can be formed on both the front and back sides of the PCB board 9, thereby improving heat dissipation efficiency.

According to the preferable scheme, the edge of the PCB supporting plate 1 is provided with a vertical plate 6 used for blocking the horizontal longitudinal movement of the PCB 9, the vertical plate 6 is provided with a horizontal clamping groove 7 used for limiting the horizontal movement of the PCB 9, and the tail end of the PCB 9 is transversely inserted into the horizontal clamping groove 7. As shown in fig. 1 and 3, when the PCB 9 is mounted, the PCB 9 is first vertically put down, and then moved longitudinally, and the PCB 9 is clamped and fixed by using the elastic and plastic deformation of the vertical plate 6. Then the bolt is screwed in for final fixation.

Preferably, the PCB support plate 1 is detachably connected to the PCB isolation plate 2. The two can be integrally formed, or welded, or bonded, or bolted. The design is specifically based on actual installation requirements.

In a preferred scheme, the PCB support is made of plastic. The plastic material has the light and thermal-insulated effect for the heat is dispelled the heat through heat dissipation channel as far as possible, prevents that the heat from scurrying and loosing, improves the radiating efficiency.

The embodiment of the utility model provides a circuit board is still provided, the circuit board includes a plurality of MOS pipes, each MOS pipe with as before any the multichannel battery detect with circuit board's mounting structure's ventilative window 4 sets up relatively. As shown in fig. 3, after the PCB 9 is mounted, the positions of the MOS tube soldering positions 10 are aligned with the positions of the ventilation windows 4 one by one, so that a lower air duct is formed, and the heat dissipation efficiency of the MOS tube 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 mounting structure of multichannel battery test circuit board which characterized in that: including the PCB support, the PCB support includes PCB backup pad and PCB division board, the PCB backup pad with the PCB division board is vertical angle and distributes, be equipped with a plurality of ventilation holes in the PCB division board, the fretwork is equipped with a plurality of edges in the PCB backup pad 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.

2. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: and each ventilation window corresponds to the MOS tube on the PCB one by one.

3. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the cross-sectional area of the ventilation window is equal to that of the MOS tube.

4. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the back of the PCB supporting plate is provided with a supporting column used for mounting the PCB supporting plate in an overhead manner.

5. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the front of the PCB supporting plate is provided with a boss, a threaded hole is formed in the boss, the back 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 supporting plate.

6. The mounting structure of a multi-channel battery test circuit board according to claim 5, characterized in that: the height of the ventilation hole is higher than the height of a gap between the PCB supporting plate and the PCB.

7. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the PCB is characterized in that a vertical plate used for blocking the horizontal longitudinal movement of the PCB is arranged on the edge of the PCB supporting plate, a horizontal clamping groove used for limiting the horizontal movement of the PCB is arranged on the vertical plate, and the tail end of the PCB is transversely inserted into the horizontal clamping groove.

8. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the PCB supporting plate is detachably connected with the PCB isolation plate.

9. The mounting structure of a circuit board for multi-channel battery inspection according to claim 1, characterized in that: the PCB support is made of plastic materials.

10. A circuit board, characterized by: the circuit board comprises a plurality of MOS tubes, and each MOS tube is arranged opposite to the ventilation window of the mounting structure of the multi-channel circuit board for battery detection according to any one of claims 1 to 9.