CN202600019U - Current sensor device and current sensor thereof - Google Patents
Current sensor device and current sensor thereof Download PDFInfo
- Publication number
- CN202600019U CN202600019U CN 201220172599 CN201220172599U CN202600019U CN 202600019 U CN202600019 U CN 202600019U CN 201220172599 CN201220172599 CN 201220172599 CN 201220172599 U CN201220172599 U CN 201220172599U CN 202600019 U CN202600019 U CN 202600019U
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- wall
- current sensor
- installation room
- circuit board
- housing
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Abstract
The utility model discloses a current sensor. The current sensor comprises a shell body and a circuit board; the shell body comprises a first installation chamber, a second installation chamber, a bus buckling structure adjacent to the first installation chamber and a circuit board buckling structure adjacent to the second installation chamber; the circuit board comprises a circuit board fastening structure; the circuit board is arranged in the second installation chamber, and the circuit board buckling structure and the circuit board fastening structure cooperate with each other so as to fix the circuit board in the second installation chamber.
Description
Technical field
The utility model relates to sensor field, particularly a kind of current sensor apparatus and current sensor thereof.
Background technology
Along with environmental issue by the increasing concern of society, it has been trend of the times that fuel-engined vehicle is replaced by new-energy automobile such as electric automobile, hybrid-electric car, electric automobile and hybrid-electric car have obtained unprecedented opportunity to develop.
In electric automobile, hybrid-electric car, inverter need be collected the current signal that flows through bus in order to the control motor, and inverter flows through the size of the electric current of bus usually through current sensor senses.
Shown in Figure 1 is a kind of current sensor 10 of the prior art.As shown in fig. 1, current sensor 10 comprises shell 12.Bus 20 is inserted in the shell 12 of current sensor 10.Be located at the magnetic field size that hall effect integrated circuit in the shell 12 can detect bus 20.Yet bus 20 is fixed on the shell 12 through bolt 30, inconvenient installation.And, the complex structure of shell 12, manufacturing cost is high.
The utility model content
The utility model technical matters to be solved is, a kind of current sensor of being convenient to install is provided.
The utility model is achieved in that provides a kind of current sensor, comprises housing and circuit board; Said housing comprises first installation room, second installation room, the bus buckle structure adjacent with said first installation room and the circuit-board card buckle structure adjacent with said second installation room; Said circuit board comprises the circuit board fastening structure; Said circuit board is arranged in said second installation room, and said circuit-board card buckle structure and said circuit board fastening structure cooperatively interact and said circuit board is fixed in said second installation room.
Further, said circuit board fastening structure is the end face of replacing with said circuit-board card buckle structure on the said circuit board.
Further, said housing also comprise first wall, second wall and, two connecting walls; Said first wall and said second wall are provided with at interval; Said two connecting walls are provided with at interval and between said first wall and said second wall, extend and respectively both are connected, thus between said first wall, said second wall and said two connecting walls said first installation room of formation; Said second installation room is formed in said second wall.
Further, said bus buckle structure comprises linking arm and grab; Said linking arm is arranged on the said first wall and is adjacent with said first installation room, and said linking arm extends to form towards the direction away from said housing from said first wall; Said grab is formed on the free end of said linking arm.
Further, said circuit-board card buckle structure comprises adjutage and grab; Said adjutage is formed on said second wall and is adjacent with said second installation room, and said adjutage extends to form towards the direction away from said housing from said second wall; Said grab is formed on the free end of said adjutage.
Further, said second installation room comprises first groove and second groove; Said first groove and said second groove all are formed on said second wall; Said second groove is between said first groove and said first installation room; Said first groove is the size on another the direction from one of said two connecting walls to said two connecting walls; Greater than said second groove size on another the direction, and between said first groove and said second groove, form the stage portion that supports said circuit board from one of said two connecting walls to said two connecting walls.
Further, said second groove is communicated with said first groove with said second installation room.
Further, said circuit-board card buckle structure is arranged on the said stage portion.
Further, contiguous said circuit-board card buckle structure place is provided with the breach that is communicated with said second installation room on said second wall; Said circuit board also comprises plate body, magnetic detection chip and connector; Said plate body is arranged in said first installation room; Said plate body comprises towards the first surface of said first wall with towards the second surface of said second wall; Said magnetic detection chip is welded on the said second surface of said plate body; Said connector is arranged on the said first surface of said plate body and is arranged in said breach.
Further, said housing also comprises shielding construction; Said shielding construction comprises first barricade, two secondary shielding plates and two the 3rd barricades; Said first barricade is positioned at the inside of said first wall; Said two secondary shielding plates are respectively formed at the two ends of said first barricade, and pass said connecting wall, said second wall successively and the outside of the said housing that arrives; Said two the 3rd barricades are respectively formed at the free end that said two secondary shielding plates are positioned at said outside; Said two the 3rd barricades extend in opposite directions from the end of the said secondary shielding plate of correspondence respectively and the free end of two the 3rd barricades of telling is provided with at interval.
Further, said housing also comprises the guide rail that is formed on said second wall; Said guide rail extends towards said first wall along the direction from said second wall to said first wall from said second wall, and is provided with at interval with said first wall.
Further, said first installation room runs through said housing, and the cross sectional shape of said first installation room on the direction that runs through said housing perpendicular to said first installation room is rectangular.
The utility model also provides a kind of current sensor apparatus, comprises bus and above-mentioned current sensor; Said bus comprises body and bus interface arrangment; Said body is arranged in said first installation room; And said bus buckle structure and said bus interface arrangment cooperatively interact and said bus are fixed in said first installation room.
Further, said bus interface arrangment is the hole that is arranged on the said body.
Further, said housing also comprises the guide rail that is formed on said second wall; Said guide rail extends towards said first wall along the direction from said second wall to said first wall from said second wall, and is provided with at interval with said first wall; Said bus also comprises chute; Said chute is arranged on the said body and with said guide rail and cooperates.
Compared with prior art, through circuit-board card buckle structure fixing circuit board, can pass through fixedly bus 300 of bus buckle structure in current sensor of the utility model and the current sensor apparatus, not adopt bolt, install simple, convenient and swift.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of instructions, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
In order to make the utility model technical matters to be solved, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Fig. 1 is the current sensor of a kind of LEM of the prior art company design, wherein:
Fig. 2 is the synoptic diagram of current sensor apparatus among the utility model one embodiment;
Fig. 3 is the sectional view of Fig. 2;
Fig. 4 is the enlarged diagram of the current sensor of current sensor apparatus among Fig. 2;
Fig. 5 is the side view of Fig. 4; With
Fig. 6 is the decomposing schematic representation of Fig. 4.
Embodiment
In order to make the utility model technical matters to be solved, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 2 and shown in Figure 3 be the synoptic diagram of current sensor apparatus 100 among the utility model one embodiment.Current sensor apparatus 100 comprises current sensor 200 and bus 300.Wherein, bus 300 can insert and adopt non-bolt fixed mode such as buckle mode to be fixed in the current sensor 200, and current sensor 200 can detect the electric current that flows through in the bus 300.
Particularly, as shown in Figure 2, current sensor 200 comprises housing 210 and is installed in the circuit board 230 in the housing 210.Wherein, housing 210 can adopt plastics etc. to process.Housing 210 can be for roughly being the hollow structure of rectangular parallelepiped.As shown in Figure 4, housing 210 comprises first wall 212, second wall 213, two connecting walls 214, two installation rooms i.e. first installation room 215 and second installation room 216, circuit-board card buckle structure 217 and bus buckle structure 218.
Wherein, as shown in Figure 5, first wall 212 and second wall, 213 mutual almost parallels and setting at interval; Two connecting wall 214 mutual almost parallels and being provided with at interval, and between first wall 212 and second wall 213, extend and respectively both are connected, thus between first wall 212, second wall 213 and two connecting walls 214 formation first installation room 215.First installation room 215 is used to install bus 300.First installation room 215 runs through whole housing 210 along first direction D1 (when current sensor 200 was in position shown in Figure 5, first direction D1 was the direction perpendicular to paper), and roughly rectangular perpendicular to the shape on the cross section of first direction D1.
The first wall 212 and second wall 213 against each other, and the thickness of second wall 213 greater than the thickness of first wall 212 so that on second wall 213, form second installation room 216.Second installation room 216 is used for mounting circuit boards 230.Second installation room 216 is above second direction D2 promptly is positioned at first installation room 215 from the direction of first wall 212 to second walls 213.As shown in Figure 3, second installation room 216 comprises first groove 2162 and second groove 2163 that is formed on second wall 213.First groove 2162 is being positioned on the second direction D2 above second groove 2163, and in other words, second groove 2163 is between first groove 2162 and first installation room 215.In the present embodiment, second groove 2163 and is communicated with first groove 2162 between first groove 2162 and first installation room 215 with second installation room 216, thereby can adapt to the circuit board 230 and bus 300 that different size is installed.
Circuit-board card buckle structure 217 is formed on second wall 213.Like Fig. 4 and shown in Figure 6, circuit-board card buckle structure 217 comprises adjutage 2172 and grab 2173.Adjutage 2172 is formed on the stage portion 219 and is adjacent with second installation room 216.Adjutage 2172 generally perpendicularly is arranged on the stage portion 219, and extends to form towards the direction away from current sensor 200 along first direction D1 from stage portion 219.Grab 2173 is formed on the free end of adjutage 2172.Adjutage 2172 has elasticity on second direction D2: do the time spent when receiving external force, adjutage 2172 can produce elastic deformation on second direction D2; After external force was removed, adjutage 2172 can be returned to stressed preceding position.In the present embodiment, each stage portion 219 is provided with a circuit-board card buckle structure 217.In addition, proximate circuitry integrated circuit board buckle structure 217 places are provided with a breach 2132 on second wall 213.Breach 2132 is communicated with first groove 2162.
Like Fig. 4 and shown in Figure 6, circuit board 230 comprises plate body 232, magnetic detection chip 235 and connector 236.When circuit board 230 was installed in the housing 210, plate body 232 comprised towards the first surface of first wall 212 with towards the second surface of second wall 213.Magnetic detection chip 235 is welded on the second surface of plate body 232 like Hall element.Connector 236 is arranged on the first surface of plate body 232.In one embodiment, magnetic detection chip 235 can lay respectively at the two ends place of plate body 232 on first direction D1 with connector 236.Magnetic detection chip 235 can be used for detecting the size in the magnetic field of the bus 300 that is installed in the current sensor 200, and voltage signal is passed to control panel through connector 236.
Above-mentioned is the concrete structure of the current sensor 200 among the utility model one embodiment, below the assemble method of brief description current sensor 200.
When needs were installed to circuit board 230 in the housing 210, an end that circuit board 230 is provided with magnetic detection chip 235 was inserted in first groove 2162, and make circuit board 230 along first direction towards D1 to housing 210 slides within.In this process.Can apply acting force to circuit-board card buckle structure 217 through circuit board 230 or mode such as manual, make circuit board 230 slide smoothly along stage portion 219 thereby make adjutage 2172 on second direction D2, produce elastic deformation.When the end face that is provided with an end of connector 236 when circuit board 230 slips over grab 2173; The acting force that is applied on the circuit-board card buckle structure 217 disappears; Adjutage 2172 is returned to stressed preceding position; Thereby make grab 2173 and circuit board fastening structure 238 on the circuit board 230 cooperatively interact circuit board is fixed in the housing 210, at this moment, connector 236 is arranged in breach 2132.In the embodiment shown in fig. 4, circuit board fastening structure 238 is provided with the end face of an end of connector 236 for circuit board 230.
When needs shift out circuit board 230 from housing 210; Adjutage 2172 is applied acting force on second direction D2; Make circuit board fastening structure 238 on grab 2173 and the circuit board 230 break away from and cooperate that oppositely extracting circuit plate 230 can shift out circuit board 230 from housing 210.
In addition, receive near the influence of electromagnetic interference (EMI) in order to prevent current sensor 200, current sensor 200 can further comprise shielding construction 225.Shielding construction 225 can be processed by shield electromagnetic interference performance good material such as permalloy.Shielding construction 225 can be integrally formed with housing 210 through insert molding method etc.As shown in Figure 3, shielding construction 225 comprises first barricade 2252, two secondary shielding plates 2253 and two the 3rd barricades 2254.First barricade 2252 is positioned at the inside of first wall 212; Two secondary shielding plates 2253 are respectively formed at the two ends of first barricade 2252 and are approximately perpendicular to first barricade 2252.Secondary shielding plate 2253 extends along second direction D2 and passes through connecting wall 214, second wall 213 successively and the outside of the housing 210 that arrives.Two the 3rd barricades 2254 are respectively formed at the free end that secondary shielding plate 2253 is positioned at housing 210 outsides, and are approximately perpendicular to secondary shielding plate 2253.Two the 3rd barricades 2254 extend along third direction D3 from the end of the secondary shielding plate 2253 of correspondence respectively in opposite directions, and the free end of two the 3rd barricades 2254 is provided with at interval.
In addition, for the ease of bus 300 is installed, current sensor 200 can further comprise the guide rail 220 that is formed on the pair of parallel on second wall 213.Two guide rail 220 spaces are provided with.As shown in Figure 5, guide rail 220 extends from second wall 213 along second direction D2 towards first wall 212, and is provided with at interval with first wall 212.
The shape of bus 300, size etc. can be set according to actual user demand.In the present embodiment, as shown in Figure 2, bus 300 comprises body 320, bus interface arrangment 330 and a pair of almost parallel and mutual chute 350.Chute 350 is arranged on the body 320 corresponding to guide rail 220.Chute 350 extends along first direction D1 on body 320.Bus interface arrangment 330 can for example run through the through hole of body 320 for being arranged on the hole on the body 320 on second direction D2, this through hole can be between chute 350.
When needs are installed to bus 300 in the current sensor 200, an end of bus 300 is inserted in first installation room 215 and makes guide rail 220 cooperate with chute 350 and with bus 300 location, make bus 300 along first direction D1 towards housing 210 slides within.In this process.Can apply acting force to bus buckle structure 218 through bus 300 or mode such as manual, make linking arm 2182 on second direction D2, produce elastic deformation, slide smoothly thereby make bus 300 cooperate with chute 350 down at guide rail 220.When bus interface arrangment 330 slides into grab 2183 tops; The acting force that is applied on the bus buckle structure 218 disappears; Linking arm 2182 is returned to stressed preceding position, thereby make grab 2183 and bus interface arrangment 330 cooperatively interact bus 300 is fixed in the housing 210.
When needs shift out bus 300 from housing 210, linking arm 2182 is applied acting force on second direction D2, make grab 2183 break away from and cooperate with bus interface arrangment 330, oppositely extract bus 300 out and can bus 300 be shifted out from housing 210.
As stated; Pass through circuit-board card buckle structure 217 fixing circuit boards 230 in current sensor apparatus 100 of the utility model and the current sensor 200; Also pass through fixedly bus 300 of bus buckle structure 218 through guide rail 220 location buses 300 simultaneously; Do not adopt bolt, install simple, convenient and swift.In addition, the size of circuit board 230 is less, and magnetic detection chip 235 is welded on like Hall element on the plate body 232 of circuit board 230, makes can reduce whole size by whole compact conformation.In addition, the square-section of first installation room 215 and guide rail 220 designs, the bus that can be used for the varying cross-section shape is to adapt to different levels of current.Moreover, through shielding construction 225 is set, can prevent that current sensor 200 from receiving near the influence of electromagnetic interference (EMI); And shielding construction 225 can be integrally formed with housing 210 through insert molding method etc., and is simple in structure, low cost of manufacture.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (15)
1. a current sensor (200) comprises housing (210) and circuit board (230); It is characterized in that said housing (210) comprises first installation room (215), second installation room (216), the bus buckle structure (218) adjacent with said first installation room (215) and the circuit-board card buckle structure (217) adjacent with said second installation room (216); Said circuit board (230) comprises circuit board fastening structure (238); Said circuit board (230) is arranged in said second installation room (216), and said circuit-board card buckle structure (217) and said circuit board fastening structure (238) cooperatively interact and said circuit board (230) is fixed in said second installation room (216).
2. current sensor according to claim 1 (200) is characterized in that, said circuit board fastening structure (238) is gone up the end face of replacing with said circuit-board card buckle structure (217) for said circuit board (230).
3. current sensor according to claim 1 (200) is characterized in that, said housing (210) also comprises first wall (212), second wall (213) and two connecting walls (214); Said first wall (212) and said second wall (213) are provided with at interval; Said two connecting walls (214) are provided with at interval and between said first wall (212) and said second wall (213), extend and respectively both are connected, thus between said first wall (212), said second wall (213) and said two connecting walls (214) formation said first installation room (215); Said second installation room (216) is formed in said second wall (213).
4. current sensor according to claim 3 (200) is characterized in that, said bus buckle structure (218) comprises linking arm (2182) and grab (2183); It is last and adjacent with said first installation room (215) that said linking arm (2182) is arranged on said first wall (212), and said linking arm (2182) extends to form towards the direction away from said housing (210) from said first wall (212); Said grab (2183) is formed on the free end of said linking arm (2182).
5. current sensor according to claim 3 (200) is characterized in that, said circuit-board card buckle structure (217) comprises adjutage (2172) and grab (2173); It is last and adjacent with said second installation room (216) that said adjutage (2172) is formed on said second wall (213), and said adjutage (2172) extends to form towards the direction away from said housing (210) from said second wall (213); Said grab (2173) is formed on the free end of said adjutage (2172).
6. current sensor according to claim 3 (200) is characterized in that, said second installation room (216) comprises first groove (2162) and second groove (2163); Said first groove (2162) and said second groove (2163) all are formed on said second wall (213); Said second groove (2163) is positioned between said first groove (2162) and said first installation room (215); Said first groove (2162) is the size on another the direction from one of said two connecting walls (214) to said two connecting walls (214); Greater than said second groove (2163) size on another the direction, and between said first groove (2162) and said second groove (2163), form the stage portion (219) that supports said circuit board (230) from one of said two connecting walls (214) to said two connecting walls (214).
7. current sensor according to claim 6 (200) is characterized in that, said second groove (2163) is communicated with said first groove (2162) with said second installation room (216).
8. current sensor according to claim 6 (200) is characterized in that, said circuit-board card buckle structure (217) is arranged on the said stage portion (219).
9. current sensor according to claim 3 (200) is characterized in that, said second wall (213) is gone up contiguous said circuit-board card buckle structure (217) and located to be provided with the breach (2132) that is communicated with said second installation room (216); Said circuit board (230) also comprises plate body (232), magnetic detection chip (235) and connector (236); Said plate body (232) is arranged in said first installation room (215); Said plate body (232) comprises towards the first surface of said first wall (212) with towards the second surface of said second wall (213); Said magnetic detection chip (235) is welded on the said second surface of said plate body (232); Said connector (236) is arranged on the said first surface of said plate body (232) and is arranged in said breach (2132).
10. current sensor according to claim 3 (200) is characterized in that, said housing (210) also comprises shielding construction (225); Said shielding construction (225) comprises first barricade (2252), two secondary shielding plates (2253) and two the 3rd barricades (2254); Said first barricade (2252) is positioned at the inside of said first wall (212); Said two secondary shielding plates (2253) are respectively formed at the two ends of said first barricade (2252), and pass said connecting wall (214), said second wall (213) successively and the outside of said housing (210) that arrive; Said two the 3rd barricades (2254) are respectively formed at said two secondary shielding plates (2253) and are positioned at the outside free end of said housing (210); Said two the 3rd barricades (2254) extend in opposite directions from the end of the said secondary shielding plate (2253) of correspondence respectively and the free end of two the 3rd barricades (2254) of telling is provided with at interval.
11. current sensor according to claim 3 (200) is characterized in that, said housing (210) also comprises the guide rail (220) that is formed on said second wall (213); Said guide rail (220) extends from said second wall (213) along the direction from said second wall (213) to said first wall (212) towards said first wall (212), and is provided with at interval with said first wall (212).
12. current sensor according to claim 1 (200); It is characterized in that; Said first installation room (215) runs through said housing (210), and the cross sectional shape of said first installation room (215) on the direction that runs through said housing (210) perpendicular to said first installation room (215) is rectangular.
13. a current sensor apparatus (100) comprises bus (300), it is characterized in that, said current sensor apparatus (100) also comprises according to any one described current sensor (200) in the claim 1 to 10; Said bus (300) comprises body (320) and bus interface arrangment (330); Said body (320) is arranged in said first installation room (215); And said bus buckle structure (218) cooperatively interacts with said bus interface arrangment (330) and said bus (300) is fixed in said first installation room (215).
14. current sensor apparatus according to claim 13 (100) is characterized in that, said bus interface arrangment (330) is for being arranged on the hole on the said body (320).
15. current sensor apparatus according to claim 13 (100) is characterized in that, said housing (210) also comprises the guide rail (220) that is formed on said second wall (213); Said guide rail (220) extends from said second wall (213) along the direction from said second wall (213) to said first wall (212) towards said first wall (212), and is provided with at interval with said first wall (212); Said bus (300) also comprises chute (350); Said chute (350) is arranged on said body (320) and upward and with said guide rail (220) cooperates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172599 CN202600019U (en) | 2012-04-20 | 2012-04-20 | Current sensor device and current sensor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220172599 CN202600019U (en) | 2012-04-20 | 2012-04-20 | Current sensor device and current sensor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202600019U true CN202600019U (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220172599 Expired - Lifetime CN202600019U (en) | 2012-04-20 | 2012-04-20 | Current sensor device and current sensor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202600019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115416A (en) * | 2021-11-10 | 2022-03-01 | 吕梁学院 | Reference source for precisely adjusting voltage |
-
2012
- 2012-04-20 CN CN 201220172599 patent/CN202600019U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114115416A (en) * | 2021-11-10 | 2022-03-01 | 吕梁学院 | Reference source for precisely adjusting voltage |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121212 |
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| CX01 | Expiry of patent term |