CN203275498U - Current sensor module of electric automobile - Google Patents
Current sensor module of electric automobile Download PDFInfo
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- CN203275498U CN203275498U CN 201320308401 CN201320308401U CN203275498U CN 203275498 U CN203275498 U CN 203275498U CN 201320308401 CN201320308401 CN 201320308401 CN 201320308401 U CN201320308401 U CN 201320308401U CN 203275498 U CN203275498 U CN 203275498U
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- circuit board
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- box body
- current sensor
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Abstract
The utility model discloses a current sensor module of an electric automobile. The current sensor module comprises a box body, a control circuit board, a plurality of current sensors and a plurality of binding posts; a cavity is arranged in the box body; the control circuit board is arranged in the cavity; the plurality of the current sensors are arranged on the top face of the control circuit board and are electrically connected with the control circuit board; a first through hole is arranged in the middle of each of the current sensors, a second through hole is arranged in the control circuit board below each of the first through holes, and a third through hole is arranged in the bottom wall of the box body below each of the second through holes; and each of the binding posts passes through one first through hole, one second through hole and one third through hole and is fixedly arranged on the bottom wall of the box body. The current sensor module of the electric automobile is compact in size, easy to install and connect, high in reliability, strong in anti-interference ability, easy to repair and low in cost.
Description
Technical field:
The utility model relates to a kind of electric automobile current sensor module.
Background technology:
Due to the drive characteristic of motor in electric automobile, need the three-phase current of motor in electric automobile is detected in operational process.Because current sensor is single independently components and parts, each current sensor can only detect the single-phase current of motor in electric automobile.Now the detection of motor in electric automobile three-phase current is generally adopted current sensor and the control circuit board of a plurality of individual packages, but there is following several problem in this structure: when 1) a plurality of independently current sensors use simultaneously, the inner space that makes it take electric machine controller is excessive, be unfavorable for the installation of current sensor, control circuit board, connect binding post and also quite bother; 2) each current sensor needs to draw how the group lead-in wire externally connects, and too much lead-in wire connection makes wiring mixed and disorderly, and easy polarization dislocation, make the electric automobile cisco unity malfunction when connection is installed; 3) inconvenient maintenance when current sensor breaks down or damages, assembling, maintenance cost is high.
Summary of the invention:
The purpose of this utility model is to provide a kind of electric automobile current sensor module, and this is simple and compact for structure, install easy to connect, reliability is high, antijamming capability is strong, and is easy to maintenance, cost is low.
The purpose of this utility model is achieved by following technical proposals.
a kind of electric automobile current sensor module, comprise box body, control circuit board, some current sensors and some binding posts, offer cavity on box body, control circuit board is installed in cavity, several current sensors are arranged on the end face of control circuit board and form with control circuit board and are electrically connected to, be provided with the first through hole in the middle of current sensor, below the first through hole, offer the second through hole on control circuit board, below the second through hole, offer third through-hole on the diapire of box body, binding post runs through the first through hole, the second through hole and third through-hole also are fixedly mounted on the diapire of box body.
In cavity described above, up stretch out wire bushing on the diapire of box body around third through-hole, wire bushing is sleeved on the outer wall of binding post.
On the diapire of cavity described above, the below of control circuit board installs magnet ring, described magnet ring is ring-like, magnet ring is looped around the periphery of binding post.
In cavity described above, on the diapire of box body, some support strip are set, magnet ring is arranged on the end face of support strip, stretches out some fixture blocks at the inwall of box body, and outer wall and the fixture block of magnet ring closely cooperate
The bottom interior wall of box body described above is protruded some support columns, and screw passes control circuit board and is screwed into support column control circuit board locking is arranged on the end face of support column.
Control circuit board described above is provided with multi-tap, and the detection signal on control circuit board is concentrated output by multi-tap.
The outer wall of box body described above stretches out some installation projections, installs on projection pilot hole is set.
Box body described above also comprises the upper cover that is arranged on the box body top, and upper cover blocks the entrance of cavity, and upper cover is offered some fourth holes, and binding post passes from fourth hole.
control circuit board described above is integrated with stabilized voltage supply, current detection circuit, voltage/current conversion circuit and disconnection fault warning circuit, stabilized voltage supply is control circuit board each several part circuit supply, the detection signal of current detection circuit received current sensor also converts this signal to voltage signal and delivers to the voltage/current conversion circuit processing, voltage/current conversion circuit is output current signal outward, the disconnection fault warning circuit is connected to the output terminal of voltage/current conversion circuit, when voltage/current conversion circuit output phase shortage electric current, the disconnection fault warning circuit is exported newspaper barrier signal outward.
Current detection circuit described above comprises 3 current sensors, and current sensor adopts Hall current sensor.
the utility model compared with prior art, has following effect: 1) offer cavity on box body, control circuit board is installed in cavity, several current sensors are arranged on the end face of control circuit board and form with control circuit board and are electrically connected to, be provided with the first through hole in the middle of current sensor, below the first through hole, offer the second through hole on control circuit board, below the second through hole, offer third through-hole on the diapire of box body, binding post runs through the first through hole, the second through hole and third through-hole also are fixedly mounted on the diapire of box body, a plurality of current sensors, control circuit board and some binding posts are assembled into a black box, this is simple and compact for structure, good integrity, the convenient installation connects, do not need too much lead-in wire to connect, the reliability that connects is high, guarantee the normal operation of electric automobile, when breaking down or damage, current sensor also is easy to remove and repair, maintenance cost is low, 2) in cavity, up stretch out wire bushing on the diapire of box body around third through-hole, wire bushing is sleeved on the outer wall of binding post, makes the installation of binding post more solid and reliable, and stressed being not easy swings, and avoids affecting the normal operation of motor in electric automobile, 3) on the diapire of cavity, control circuit board below magnet ring is installed, magnet ring is ring-like, magnet ring is looped around the periphery of binding post, by increasing a magnet ring, strengthen the antijamming capability of current sensor, guarantee the normal operation of current sensor, in cavity, on the diapire of box body, some support strip are set, magnet ring is arranged on the end face of support strip, inwall at box body stretches out some fixture blocks, and outer wall and the fixture block of magnet ring closely cooperate, and this is simple in structure, magnet ring is installed firmly, be not easy when stressed to rock to get loose, 4) bottom interior wall of box body is protruded some support columns, and screw passes control circuit board and is screwed into support column control circuit board locking is arranged on the end face of support column, and is simple in structure, convenient installation control circuit board, and also solid and reliable, 5) control circuit board is provided with multi-tap, and the detection signal on control circuit board is concentrated output by multi-tap, reduces connecting lead wire, makes the more neat compactness in inner space of box body, the reliability that raising connects, 6) outer wall of box body stretches out some installation projections, installs on projection pilot hole is set, and this is simple in structure, facilitates location and installation, 7) control circuit board is integrated with stabilized voltage supply, current detection circuit, voltage/current conversion circuit and disconnection fault warning circuit, stabilized voltage supply is control circuit board each several part circuit supply, the detection signal of current detection circuit received current sensor also converts this signal to voltage signal and delivers to the voltage/current conversion circuit processing, voltage/current conversion circuit is output current signal outward, the disconnection fault warning circuit is connected to the output terminal of voltage/current conversion circuit, when voltage/current conversion circuit output phase shortage electric current, the disconnection fault warning circuit is exported newspaper barrier signal outward, effectively guarantee the safe operation of motor in electric automobile, reliability when improving the motor in electric automobile operation, avoid motor in the situation that the phase shortage electric current moves, avoid causing larger damage.
Description of drawings:
Fig. 1 is stereographic map of the present utility model.
Fig. 2 is the stereographic map that the utility model is not installed upper cover.
Fig. 3 is the exploded view of Fig. 2.
Fig. 4 is the stereographic map of the utility model box body.
Fig. 5 is vertical view of the present utility model.
Fig. 6 is the A-A cut-open view of Fig. 5.
Fig. 7 is the C-C partial enlarged drawing of Fig. 6.
Fig. 8 is the B-B cut-open view of Fig. 5.
Fig. 9 is circuit block diagram of the present utility model.
Figure 10 is circuit diagram of the present utility model.
Figure 11 is the partial circuit diagram of Figure 10.
Embodiment:
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
as extremely shown in Figure 10 in Fig. 1, the utility model is a kind of electric automobile current sensor module, comprise box body 1, control circuit board 2, some current sensors 3 and some binding posts 4, offer cavity 11 on box body 1, 11 li of cavitys, control circuit board 2 is installed, several current sensors 3 are arranged on the end face of control circuit board 2 and form with control circuit board 2 and are electrically connected to, be provided with the first through hole 31 in the middle of current sensor 3, below the first through hole 31, offer the second through hole 21 on control circuit board 2, below the second through hole 21, offer third through-hole 12 on the diapire of box body 1, binding post 4 runs through the first through hole 31, the second through hole 21 and third through-hole 12 also are fixedly mounted on the diapire of box body 1.
Up stretch out wire bushing 13 on the diapire of 11 li of cavitys, box body 1 around third through-hole 12, wire bushing 13 is sleeved on the outer wall of binding post 4.
On the diapire of cavity 11, control circuit board 2 below magnet ring 5 is installed, magnet ring 5 is ring-like, magnet ring 5 is looped around the periphery of binding post 4.
Some support strip 14 are set on the diapire of 11 li of cavitys, box body 1, and magnet ring 5 is arranged on the end face of support strip 14, stretches out some fixture blocks 15 at the inwall of box body 1, and the outer wall of magnet ring 5 and fixture block 15 closely cooperate.
Bottom interior wall at box body 1 is protruded some support columns 16, and screw passes control circuit board 2 and is screwed into support column 16 control circuit board 2 lockings are arranged on the end face of support column 16.
The outer wall of box body 1 stretches out some installation projections 17, installs on projection 17 pilot hole 170 is set.
Current detection circuit comprises 3 current sensors 3, and current sensor 3 adopts Hall current sensor.
As shown in figure 11, the testing circuit with one of them current sensor 3 illustrates operation principle of work of the present utility model.Stabilized voltage supply comprises voltage stabilizing chip LM78D05 and the LM78D12 of two, voltage stabilizing chip LM78D05 provides+DC voltage of 5V to current detection circuit, and voltage stabilizing chip LM78D12 provides+DC voltage of 12V to voltage/current conversion circuit and disconnection fault warning circuit.
The RC filtering circuit comprises the first resistance R 1, the 25 resistance R 25 and the 3rd capacitor C 3, amplifier comprises the 19 resistance R 19, operational amplifier IC1B, the 7th resistance R 7 and the 16 resistance R 16, mirror current source comprises the tenth resistance R 10, the 11 resistance R 11, the first triode Q1 and the second triode Q2, the disconnection fault warning circuit comprises optocoupler electric capacity OP1B, the second resistance R 2, the first diode D1, the 6th capacitor C 6, the 28 resistance R 28 and the 7th triode Q7, and the newspaper barrier signal of disconnection fault warning circuit is exported outward by the 7th triode Q7.
Principle of the present utility model is 11 li of cavitys, control circuit board 2 to be installed, several current sensors 3 are arranged on the end face of control circuit board 2 and form with control circuit board 2 and are electrically connected to, binding post 4 runs through the first through hole 31, the second through hole 21 and third through-hole 12 and is fixedly mounted on the diapire of box body 1, wire bushing 13 is sleeved on the outer wall of binding post 4, on the diapire of cavity 11, control circuit board 2 below magnet ring 5 is installed, this is simple and compact for structure, install easy to connect, reliability is high, antijamming capability is strong, and is easy to maintenance, cost is low.
Claims (10)
1. electric automobile current sensor module, comprise box body (1), control circuit board (2), some current sensors (3) and some binding posts (4), offer cavity (11) on box body (1), at the inner control circuit board (2) of installing of cavity (11), several current sensors (3) are arranged on the end face of control circuit board (2) and form with control circuit board (2) and are electrically connected to, it is characterized in that: be provided with the first through hole (31) in the middle of current sensor (3), in the first through hole (31) below, offer the second through hole (21) on control circuit board (2), in the second through hole (21) below, offer third through-hole (12) on the diapire of box body (1), binding post (4) runs through the first through hole (31), the second through hole (21) and third through-hole (12) also are fixedly mounted on the diapire of box body (1).
2. a kind of electric automobile current sensor module according to claim 1, it is characterized in that: up stretch out wire bushing (13) on every side along third through-hole (12) on the diapire of, box body (1) inner at cavity (11), wire bushing (13) is sleeved on the outer wall of binding post (4).
3. a kind of electric automobile current sensor according to claim 2, it is characterized in that: on the diapire of cavity (11), the below of control circuit board (2) installs magnet ring (5), described magnet ring (5) is ring-like, and magnet ring (5) is looped around the periphery of binding post (4).
4. a kind of electric automobile current sensor module according to claim 3, it is characterized in that: on the diapire of, box body (1) inner at cavity (11), some support strip (14) are set, magnet ring (5) is arranged on the end face of support strip (14), inwall at box body (1) stretches out some fixture blocks (15), and the outer wall of magnet ring (5) and fixture block (15) closely cooperate.
5. a kind of electric automobile current sensor module according to claim 1, it is characterized in that: the bottom interior wall at box body (1) is protruded some support columns (16), and screw passes control circuit board (2) and is screwed into support column (16) control circuit board (2) locking is arranged on the end face of support column (16).
6. a kind of electric automobile current sensor module according to claim 5, it is characterized in that: control circuit board (2) is provided with multi-tap (6), and the detection signal on control circuit board (2) is concentrated output by multi-tap (6).
7. a kind of electric automobile current sensor module according to claim 1, it is characterized in that: the outer wall of box body (1) stretches out some installation projections (17), installs on projection (17) pilot hole (170) is set.
8. a kind of electric automobile current sensor module according to claim 1, it is characterized in that: box body (1) also comprises the upper cover (18) that is arranged on box body (1) top, upper cover (18) blocks the entrance of cavity (11), upper cover (18) is offered some fourth holes (180), and binding post (4) passes from fourth hole (180).
9. according to claim 1 and 2 or 3 or 4 or 5 or 6 described a kind of electric automobile current sensor module, it is characterized in that: control circuit board (2) is integrated with stabilized voltage supply, current detection circuit, voltage/current conversion circuit and disconnection fault warning circuit, stabilized voltage supply is control circuit board (2) each several part circuit supply, the detection signal of current detection circuit received current sensor (3) also converts this signal to voltage signal and delivers to the voltage/current conversion circuit processing, voltage/current conversion circuit is output current signal outward, the disconnection fault warning circuit is connected to the output terminal of voltage/current conversion circuit, when voltage/current conversion circuit output phase shortage electric current, the disconnection fault warning circuit is exported newspaper barrier signal outward.
10. a kind of electric automobile current sensor module according to claim 9, it is characterized in that: described current detection circuit comprises 3 current sensors (3), current sensor (3) adopts Hall current sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308401 CN203275498U (en) | 2013-05-31 | 2013-05-31 | Current sensor module of electric automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320308401 CN203275498U (en) | 2013-05-31 | 2013-05-31 | Current sensor module of electric automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203275498U true CN203275498U (en) | 2013-11-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320308401 Expired - Lifetime CN203275498U (en) | 2013-05-31 | 2013-05-31 | Current sensor module of electric automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203275498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154016A (en) * | 2016-08-26 | 2016-11-23 | 杭州集普科技有限公司 | A kind of vehicle impact testing current sensor |
| RU2761371C1 (en) * | 2018-02-06 | 2021-12-07 | Кисон Текнолоджи Корпорейшн Лимитед | Integrated sensor for detecting physiological signals |
-
2013
- 2013-05-31 CN CN 201320308401 patent/CN203275498U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154016A (en) * | 2016-08-26 | 2016-11-23 | 杭州集普科技有限公司 | A kind of vehicle impact testing current sensor |
| CN106154016B (en) * | 2016-08-26 | 2023-03-14 | 杭州集普科技有限公司 | Current sensor for automobile crash test |
| RU2761371C1 (en) * | 2018-02-06 | 2021-12-07 | Кисон Текнолоджи Корпорейшн Лимитед | Integrated sensor for detecting physiological signals |
| US11243111B2 (en) | 2018-02-06 | 2022-02-08 | Keeson Technology Corporation Limited | Integrated physiological signal detection sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |