CN209707665U - A kind of automotive battery sensor - Google Patents
A kind of automotive battery sensor Download PDFInfo
- Publication number
- CN209707665U CN209707665U CN201920406803.5U CN201920406803U CN209707665U CN 209707665 U CN209707665 U CN 209707665U CN 201920406803 U CN201920406803 U CN 201920406803U CN 209707665 U CN209707665 U CN 209707665U
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- current divider
- circuit board
- control circuit
- liner
- lower liner
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Abstract
The utility model discloses a kind of automotive battery sensors, belong to battery sensor technical field.It includes current divider, PIN needle, control circuit board, shell, the copper-manganese portion both ends of the current divider are respectively equipped with welding boss, two welding boss on current divider are fixed with pad solder corresponding on control circuit board, the shell is by upper liner, lower liner, injection casing composition, upper liner and lower liner cooperate current divider, control circuit board is encapsulated in inside, wherein, PIN needle there are two being set on lower liner with external connection, two PIN needles are fixed with pad solder corresponding on control circuit board, current divider, control circuit board, upper liner and lower liner constitute sensor main body, injection casing is equipped with outside sensor main body.Processing forms welding boss on current divider, and not only sampled point area is big for welding boss, but also more firm, and the interference circuit that two sampled points are formed after welding with control circuit board is small, can improve the stability and precision of current divider sampled voltage.
Description
Technical field
The utility model relates to a kind of automotive battery sensors, belong to battery sensor technical field.
Background technique
Automotive battery sensor is mainly made of current divider, PIN needle, control circuit board, shell, is set in the middle part of current divider
There is copper-manganese portion, for controlling resistance value, the copper-manganese portion both ends of current divider are electric with pad corresponding on control circuit board respectively in copper-manganese portion
Property connection, PIN needle is electrically connected with pad corresponding on control circuit board, and current divider, control circuit board are encapsulated in shell.It stores
Battery sensor is for measuring automobile battery charging and discharging electric current, since in vehicle operation, charging and discharging currents fluctuation is larger (outstanding
Electric current often reaches several hundred amperes or more when it is vehicle cold-start), the electric current is accurately measured in addition to needing high-accuracy current divider,
It should also be avoided and form interference circuit in current divider and control circuit board assembling (welding) mode；Storage battery sensor is usually with storage
Battery is mounted on automobile engine nacelle, since installation environment is severe, should fully consider environmental reliability, avoid etchant gas to control
The infringement of component processed.Currently, car battery sensor has some disadvantages: that (1) control circuit board and current divider sampled point are logical
It crosses lead or contact pin is attached, since current divider is mostly micro resistance, the sampling point sample on current divider is usually millivolt level, lead
Or contact pin length and position interference can be all brought to control assembly, cause to sample it is unstable, make measure current precision reduce；
(2) control circuit board is usually placed in injection casing, filling protection silica gel in shell, then imposes cover board, cover board by glue with
Cage connection.The technological operation is cumbersome, loading to protection silica gel and the adhesive property for being bonded glue require it is high, though and compared with
With environment and time passage, there may be performance degradations, cause shell not seal effectively, control assembly is made to be unable to get protection.
Summary of the invention
Technical problem to be solved by the utility model is to provide a kind of automotive battery sensors, it is solved
Automotive battery sensor has that sampling is unstable, the assembly process is complicated, sealing effect is to be improved at present.
Technical problem to be solved in the utility model takes following technical scheme to realize:
A kind of automotive battery sensor, it includes current divider, PIN needle, control circuit board, shell, the current divider
Both ends are equipped with connecting hole, are equipped with copper-manganese portion in the middle part of current divider, the copper-manganese portion both ends of current divider are corresponding on control circuit board respectively
Pad be electrically connected, PIN needle is electrically connected with pad corresponding on control circuit board, and current divider, control circuit board are encapsulated in
In shell, the copper-manganese portion both ends of the current divider are respectively equipped with welding boss, two welding boss and control line on current divider
Corresponding pad solder is fixed on the plate of road, and the shell is made of upper liner, lower liner, injection casing, upper liner and lower liner
Current divider, control circuit board are encapsulated in inside by cooperation, wherein the PIN needle there are two being set on lower liner with external connection, two
PIN needle is fixed with pad solder corresponding on control circuit board, and current divider, control circuit board, upper liner and lower liner, which are constituted, to be passed
Sensor main body, sensor main body outside are equipped with injection casing.
As preferred embodiment, the connecting hole and PIN needle of the current divider are exposed except upper liner and lower liner.
As preferred embodiment, the injection casing is structure as a whole, by Shooting Technique sealed envelope in sensor main body
It is external.
Process flow for assembling is as follows:
(1) two welding boss are processed on current divider, while thickness processing is carried out to copper-manganese portion in current divider, make current divider
Resistance value is in control range；
(2) apply tin cream on two welding boss of current divider, by control circuit board assembly on current divider, wherein controlling
Tin cream on wiring board backside pads processed and current divider welding boss contacts, and carries out solder reflow process, make control circuit board with
Current divider forms control unit；
(3) control unit that current divider and control circuit board are formed is mounted in lower liner, and will using soldering process
Control circuit board is welded with two PIN needles in lower liner.Upper inside lining filling is assigned on lower liner, current divider, control line
Road plate, upper liner and lower liner constitute sensor main body；
(4) it will be molded outside sensor main body, obtain automotive battery sensor.
The installation of automotive battery sensor is to carry out the connecting hole of automotive battery sensor and clamping component
Riveting is fixed, and is mounted in automobile by clamping component, and PIN needle and external connection communicate.
The beneficial effects of the utility model are:
(1) processing forms welding boss on current divider, and pad corresponding with control circuit board welded, relative to lead or
Contact pin, not only sampled point area is big for welding boss, but also more firm, is formed after two sampled points and control circuit board welding dry
It disturbs that circuit is small, the stability and precision of current divider sampled voltage can be improved；
(2) after current divider, control circuit board, upper liner and lower liner constitute sensor main body, directly pass through Shooting Technique,
Injection casing is set outside sensor main body, sensor main body is fully sealed and is wrapped in injection casing, it is complete with the external world
Isolation, prevents control circuit board and is affected by the external environment；
(3) it is wrapped up before control circuit board injection molding by upper liner and lower liner, in injection moulding process, upper liner and lower liner
Thermal shock of the heat generated by Shooting Technique to control circuit board can effectively be completely cut off, protect control circuit board in injection moulding process
It is not damaged；
(4) in sensor assembling process, cumbersome sizing solidification process caused by existing structure is avoided, improves production effect
Rate reduces the possibility in assembling process because of electrostatic damage control circuit board；
(5) appearance consistency is good after sensor assembling, and later process is facilitated to construct.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of current divider；
Fig. 2 is the attachment structure schematic diagram of current divider and control circuit board；
Fig. 3 is the structural schematic diagram of current divider, control circuit board loading lower liner；
Fig. 4 is the structural schematic diagram of current divider, control circuit board fit on liner；
Fig. 5 is the structural schematic diagram after sensor main body is encapsulated by injection casing；
Fig. 6 is that the utility model is mounted on the structural schematic diagram on clamping component.
In figure: current divider 1, connecting hole 11, copper-manganese portion 12, welding boss 13, PIN needle 2, control circuit board 3, upper liner 4,
Lower liner 5, injection casing 6, receptacle cavity 61, clamping component 7.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness to the utility model are easy to understand, tie below
Conjunction is specifically illustrating, and the utility model is further described.
As shown in figs 1 to 6, a kind of automotive battery sensor, it includes current divider 1, PIN needle 2, control circuit board
3, shell, 1 both ends of current divider are equipped with connecting hole 11, are equipped with copper-manganese portion 12,12 both ends of copper-manganese portion of current divider 1 in the middle part of current divider 1
It is electrically connected respectively with pad corresponding on control circuit board 3, PIN needle 2 electrically connects with corresponding pad on control circuit board 3
It connecing, current divider 1, control circuit board 3 are encapsulated in shell, and 12 both ends of copper-manganese portion of current divider 1 are respectively equipped with welding boss 13, point
Two welding boss 13 on stream device 1 are fixed with corresponding pad solder on control circuit board 3, and shell is by upper liner 4, lower liner
5, current divider 1, control circuit board 3 are encapsulated in inside by the composition of injection casing 6, upper liner 4 and the cooperation of lower liner 5, wherein in lower
It being set on lining 5 there are two the PIN needle 2 with external connection, two PIN needles 2 are fixed with corresponding pad solder on control circuit board 3,
Current divider 1, control circuit board 3, upper liner 4 and lower liner 5 constitute sensor main body, are equipped with injection casing outside sensor main body
6。
The connecting hole 11 and PIN needle 2 of current divider 1 are exposed except upper liner 4 and lower liner 5.
Injection casing 6 is structure as a whole, by Shooting Technique sealed envelope outside sensor main body
Process flow for assembling is as follows:
(1) two welding boss 13 are processed on current divider 1, while thickness processing is carried out to copper-manganese portion 12 in current divider 1, are made
1 resistance value of current divider is in control range；
(2) apply tin cream on two welding boss 13 of current divider 1, by the assembly of control circuit board 3 on current divider 1,
Wherein 3 backside pads of control circuit board weld the tin cream on boss 13 with current divider 1 and contact, and carry out solder reflow process, make to control
Wiring board 3 processed forms control unit with current divider 1；
(3) control unit that current divider 1 and control circuit board 3 are formed is mounted in lower liner 5, and uses soldering process
Control circuit board 3 and two PIN needles 2 in lower liner 5 are welded.Upper liner 4 is assemblied on lower liner 5, current divider
1, control circuit board 3, upper liner 4 and lower liner 5 constitute sensor main body；
(4) it will be molded outside sensor main body, injection mold reserves vacancy in connecting hole 11, and is formed and accommodated
The receptacle cavity 61 of PIN needle 2, the sealing of PIN needle 2 are pierced by injection casing 6, and end is in receptacle cavity 61, facilitates external, is obtained
Automotive battery sensor.
The installation of automotive battery sensor is by the connecting hole 11 of automotive battery sensor and clamping component 7
Riveting fixation is carried out, is mounted in automobile by clamping component 7, PIN needle 2 and external connection communicate.
Processing forms welding boss 13 on current divider 1, and pad corresponding with control circuit board 3 is welded, relative to lead
Or contact pin, not only sampled point area is big for welding boss 13, but also more firm, shape after two sampled points and the welding of control circuit board 3
At interference circuit it is small, the stability and precision of 1 sampled voltage of current divider can be improved；Current divider 1, control circuit board 3, upper liner
4 and after lower liner 5 constitutes sensor main body, directly by Shooting Technique, injection casing 6 is set outside sensor main body, is made
Sensor main body, which is fully sealed, to be wrapped in injection casing 6, completely isolated with the external world, prevents control circuit board 3 by external environment
It influences；Control circuit board 3 is wrapped up before being molded by upper liner 4 and lower liner 5, in injection moulding process, upper liner 4 and lower liner 5
Thermal shock of the heat generated by Shooting Technique to control circuit board 3 can effectively be completely cut off, protect control circuit board 3 in injection moulding process
In be not damaged；In sensor assembling process, cumbersome sizing solidification process caused by existing structure is avoided, improves production effect
Rate reduces the possibility in assembling process because of electrostatic damage control circuit board 3；Appearance consistency is good after sensor assembling, after convenient
Procedure construction.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry it should be appreciated that the present utility model is not limited to the above embodiments, do not depart from the spirit of the present invention and
Under the premise of range, the utility model also has various changes and improvements, these changes and improvements both fall within the utility model and want
In the range of asking protection.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (3)
1. a kind of automotive battery sensor, it includes current divider, PIN needle, control circuit board, shell, the current divider two
End is equipped with connecting hole, is equipped with copper-manganese portion in the middle part of current divider, the copper-manganese portion both ends of current divider are corresponding on control circuit board respectively
Pad is electrically connected, and PIN needle is electrically connected with pad corresponding on control circuit board, and current divider, control circuit board are encapsulated in shell
In vivo, which is characterized in that the copper-manganese portion both ends of the current divider are respectively equipped with welding boss, two welding boss on current divider
Pad solder corresponding on control circuit board is fixed, and the shell is made of upper liner, lower liner, injection casing, upper liner
Cooperate with lower liner and current divider, control circuit board be encapsulated in inside, wherein set on lower liner there are two with external connection
PIN needle, two PIN needles are fixed with pad solder corresponding on control circuit board, current divider, control circuit board, upper liner and under
Liner constitutes sensor main body, is equipped with injection casing outside sensor main body.
2. a kind of automotive battery sensor according to claim 1, which is characterized in that the connecting hole of the current divider with
And PIN needle is exposed except upper liner and lower liner.
3. a kind of automotive battery sensor according to claim 1, which is characterized in that the injection casing is integrated knot
Structure, through Shooting Technique sealed envelope outside sensor main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920406803.5U CN209707665U (en) | 2019-03-28 | 2019-03-28 | A kind of automotive battery sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920406803.5U CN209707665U (en) | 2019-03-28 | 2019-03-28 | A kind of automotive battery sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209707665U true CN209707665U (en) | 2019-11-29 |
Family
ID=68646078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920406803.5U Active CN209707665U (en) | 2019-03-28 | 2019-03-28 | A kind of automotive battery sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209707665U (en) |
-
2019
- 2019-03-28 CN CN201920406803.5U patent/CN209707665U/en active Active
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