BMS novel structure transformer

Abstract

The utility model provides a BMS novel structure transformer, the BMS novel structure transformer comprises magnetic cores, a common mode inductor, a PCB module and a PCB base plate, the number of the magnetic cores is two, the two magnetic cores are respectively located at the top and the bottom of the PCB module, the two magnetic cores are both matched with the PCB module in an inserted connection mode, a coil winding is arranged in the PCB module, the common mode inductor is welded at the top of the PCB module, and the PCB base plate is welded at the bottom of the PCB module. PINs of the PCB module are welded to the PCB bottom plate, arc-shaped grooves are formed in the two magnetic cores, an arc-shaped block is arranged in the middle of the PCB module, and the arc-shaped grooves are matched with the arc-shaped block in size.

Description

TECHNICAL FIELD

[0001] The utility model relates to BMS transformer technical field, concretely is a kind of BMS novel structure transformer. BACKGROUND

[0002] BMS transformer is one of key components in battery management system, mainly used in electric vehicle and other lithium battery monitoring systems needing high voltage insulation, and its main function is to provide electrical isolation, noise suppression and signal transmission to ensure the stable operation and safety of battery system.

[0003] Traditional BMS transformer is usually structured as wire package+ magnetic ring+ glue shell, so that its production steps are more, production line needs more people to maintain, and more manpower is consumed, and the requirement of traditional BMS transformer for wire package circle ratio is more strict, winding is more difficult when wire package circle ratio is not 1:1, so that the production efficiency of BMS transformer is lower.

[0004] Therefore, it is necessary to provide a new BMS novel structure transformer to solve the above technical problems. UTILITY MODEL CONTENT

[0005] To solve the above technical problems, the utility model provides a kind of BMS novel structure transformer with one person can maintain production line, and wire package circle ratio can be customized.

[0006] The BMS novel structure transformer provided by the utility model includes magnetic core, common mode inductance, PCB module and PCB bottom plate, the number of magnetic core is two, and two magnetic cores are located at the top and bottom of PCB module respectively, two magnetic cores are plugged with PCB module, coil winding is arranged in PCB module, common mode inductance is welded on the top of PCB module, and PIN foot of PCB module is welded on PCB bottom plate.

[0007] In order to achieve the effect that PCB module and two magnetic cores are assembled conveniently, as the BMS novel structure transformer provided by the utility model, preferably, arc-shaped groove is formed in two magnetic cores, the middle part of PCB module is arc-shaped block, the size of arc-shaped groove and arc-shaped block is matched, and arc-shaped groove and arc-shaped block are plugged.

[0008] In order to achieve the effect of limiting and fixing PCB module, as the BMS novel structure transformer provided by the utility model, preferably, limit column is fixed on the bottom wall of arc-shaped groove of bottom magnetic core, and the limit column is plugged in the limit hole of PCB module.

[0009] In order to achieve the effect of fixing two magnetic cores together, as the utility model provides BMS novel structure transformer, preferably, two the magnetic core outside all are fixedly connected with connecting plate, two The connecting plate is inserted with U-shaped fixed block, the U-shaped fixed block top is provided with a plurality of bolts, the bolt bottom passes through the first through hole of U-shaped fixed block and the second through hole of connecting plate in proper order and is screwed in the threaded groove inside the other connecting plate top.

[0010] Compared with the prior art, the utility model has the beneficial effects that:

[0011] The BMS novel structure transformer has fewer production steps, can realize integrated automatic production, the whole production Figure One Can be maintained by people, saves manpower, improves production efficiency, and the coil ratio of the PCB module can be customized at will, further improves the production efficiency of the BMS transformer, solves the problems that the traditional BMS transformer is usually structured as wire package + magnetic ring + glue shell, has more production steps, the production line needs to be maintained by multiple people, consumes more manpower, and the traditional BMS transformer has strict requirements on the wire package coil ratio, winding is difficult when the wire package coil ratio is not 1:1, and the production efficiency of the BMS transformer is low. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The structure diagram of the BMS novel structure transformer provided by the utility model is shown in the figure.

[0013] Figure 2 The utility model PCB module structure perspective view is shown in the figure.

[0014] Figure 3 The utility model U-shaped fixed block structure perspective view is shown in the figure.

[0015] Figure 4 The utility model magnetic core structure perspective view is shown in the figure.

[0016] Wherein: 1, magnetic core;101, arc-shaped groove;102, limiting column;103, connecting plate;104, U-shaped fixed block;105, bolt;106, first through hole;107, second through hole;108, threaded groove;2, common mode inductor;3, PCB module;301, limiting hole;4, PCB bottom plate. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with the drawings and embodiments.

[0018] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , wherein Figure 1The utility model provides a BMS novel structure transformer's structural diagram is provided. Figure 2 The utility model provides a PCB module structure perspective view. Figure 3 The utility model provides a U-shaped fixed block structure perspective view. Figure 4 The utility model provides a magnetic core structure perspective view. A kind of BMS novel structure transformer, including magnetic core 1, common mode inductance 2, PCB module 3 and PCB bottom plate 4, the quantity of magnetic core 1 is two and two magnetic core 1 is located at the top and bottom of PCB module 3 respectively, two magnetic core 1 are all plugged with PCB module 3, and PCB module 3 is internally provided with coil winding, common mode inductance 2 is welded at the top of PCB module 3, and PIN foot of PCB module 3 is welded on PCB bottom plate 4.

[0019] By the above technical scheme, two magnetic core 1 and PCB module 3 are assembled together, combined into coupling coil, then common mode inductance 2 is welded on PCB module 3 for filtering, to form BMS novel structure transformer, BMS novel structure transformer is high in voltage resistance, high in reliability, can satisfy customer high voltage resistance demand, and then PIN foot of PCB module 3 is welded on PCB bottom plate 4, the BMS novel structure transformer structure is convenient, can realize integrated automatic production, and only one person is needed to maintain in whole production line, saves manpower, improves production efficiency, simultaneously, the coil winding ratio of PCB module can be customized at will, solves the winding difficulty problem of traditional transformer wire package coil ratio not 1:1.

[0020] Refer to Figure 2 And Figure 4 , two magnetic core 1 are all provided with arc slot 101, and the middle part of PCB module 3 is arc block, and the size of arc slot 101 and arc block is matched, and arc slot 101 is plugged with arc block, and the arc slot 101 of magnetic core 1 is plugged with the arc block in the middle of PCB module 3, so that the assembly of magnetic core 1 and PCB module is more convenient.

[0021] Refer to Figure 2 , Figure 4 , limit post 102 is fixed on the bottom wall of arc slot 101 in bottom magnetic core 1, and limit post 102 is plugged in the limit hole 301 of PCB module 3, and limit post 102 is used to limit PCB module 3, to prevent the misplacement of PCB module 3 and magnetic core 1.

[0022] Refer to Figure 1 , Figure 3 And Figure 4The two magnetic cores 1 are fixedly connected with connecting plates 103, U-shaped fixing blocks 104 are inserted on the two connecting plates 103, a plurality of bolts 105 are arranged on the top of the U-shaped fixing blocks 104, the bottom ends of the bolts 105 are sequentially threaded through first through holes 106 arranged on the U-shaped fixing blocks 104 and second through holes 107 arranged on the connecting plates 103 and are screwed in threaded grooves 108 arranged on the top of the other connecting plate 103, after the two magnetic cores 1 are assembled with the PCB module 3, the U-shaped fixing blocks 104 are inserted on the two connecting plates 103, and then the bottom ends of the bolts 105 are sequentially threaded through the first through holes 106 and the second through holes 107 and are screwed in the threaded grooves 108, the two connecting plates 103 and the U-shaped fixing blocks 104 are fixed together through cooperation of the bolts 105 and the threaded grooves 108, and then the two magnetic cores 1 are fixed together, so that the two magnetic cores 1 are more stable when used outside the PCB module 3.

[0023] The implementation principle of the BMS novel structure transformer in the embodiment of the utility model is as follows: the two magnetic cores 1 are assembled together with the PCB module 3, combined into a coupling coil, and then the common mode inductor 2 is welded on the PCB module 3 for filtering, thereby forming the BMS novel structure transformer, the BMS novel structure transformer is high in voltage resistance and high in reliability, can satisfy the high voltage resistance demand of customers, and then the PIN pin of the PCB module 3 is welded on the PCB bottom plate 4, the BMS novel structure transformer is convenient in structure, can realize integrated automatic production, only one person is needed to maintain the whole production line, manpower is saved, production efficiency is improved, meanwhile, the coil winding ratio in the PCB module can be customized at will, and the winding difficulty problem of the traditional transformer when the coil winding ratio is not 1:1 is solved.

[0024] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail, and the components known by the person skilled in the art are known or obtained through conventional experimental methods.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A BMS novel construction transformer characterized by: Including the magnetic core (1), common mode inductor (2), PCB module (3) and PCB bottom plate (4), the number of the magnetic core (1) is two and two magnetic cores (1) are located at the top and bottom of PCB module (3) respectively, two the magnetic core (1) is plugged with PCB module (3), the inside of PCB module (3) is provided with coil winding, common mode inductor (2) is welded on the top of PCB module (3), the PIN foot of PCB module (3) is welded on PCB bottom plate (4).

2. A BMS novel construction transformer as claimed in claim 1, wherein: Two the magnetic core (1) is all set up with arc slot (101), the middle part of PCB module (3) is arc block, the arc slot (101) is compatible with the size of arc block, the arc slot (101) is plugged with arc block.

3. A BMS novel construction transformer as claimed in claim 2, wherein: The bottom magnetic core (1) is fixed with limit post (102) on the bottom wall of arc slot (101), the limit post (102) is inserted in the limit hole (301) of PCB module (3).

4. A BMS novel construction transformer as claimed in claim 1, wherein: Two the magnetic core (1) outside is fixedly connected with connecting plate (103), two the connecting plate (103) is inserted with U-shaped fixed block (104), the top of U-shaped fixed block (104) is provided with a plurality of bolts (105), the bottom end of bolt (105) sequentially passes through the first through hole (106) of U-shaped fixed block (104) and the second through hole (107) of connecting plate (103) and is screwed in the threaded groove (108) on the top of another connecting plate (103).

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