CN219871411U - Current sensor suitable for double-electric-control oil-cooled seal - Google Patents
Current sensor suitable for double-electric-control oil-cooled seal Download PDFInfo
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- CN219871411U CN219871411U CN202320075980.6U CN202320075980U CN219871411U CN 219871411 U CN219871411 U CN 219871411U CN 202320075980 U CN202320075980 U CN 202320075980U CN 219871411 U CN219871411 U CN 219871411U
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- sealing
- busbar
- current sensor
- shell
- cooled
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- 238000007789 sealing Methods 0.000 claims abstract description 96
- 230000009977 dual effect Effects 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 5
- 239000004033 plastic Substances 0.000 abstract description 5
- 229920003023 plastic Polymers 0.000 abstract description 5
- RVCKCEDKBVEEHL-UHFFFAOYSA-N 2,3,4,5,6-pentachlorobenzyl alcohol Chemical compound OCC1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1Cl RVCKCEDKBVEEHL-UHFFFAOYSA-N 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 239000003921 oil Substances 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a current sensor suitable for double electric control oil cooling sealing, which comprises: a cuboid-shaped shell, wherein a plurality of busbar avoiding holes which are vertically arranged are formed in the shell, an annular magnetic core is arranged on the periphery of each busbar avoiding hole, and a PCBA plate which is electrically connected with the magnetic core is arranged on the outer side wall of the shell; a sealing member is arranged between the busbar avoiding hole and the busbar, and a sealing structure is arranged outside the shell; the utility model has high integration level, not only maintains the characteristics of the current sensor, but also realizes the sealing of the electric control and the oil in the motor cavity; the shell, the inner side and the outer side of the utility model are all sealed by 2 channels, so as to solve the risks of potential manufacturing cracks, durable post-airtight problem and the like of the plastic shell; the reliability of the product is greatly improved, potential cracks and airtight risks are avoided, and the service life of the product is prolonged.
Description
Technical Field
The utility model relates to the technical field of electric automobiles, in particular to a current sensor suitable for double-electric-control oil-cooled sealing.
Background
With the development of the electric automobile industry, the design compactness of electric power electronics and mechanical integration in the electric automobile is higher and higher. Taking double electric control as an example, in a double electric control system, the system generally comprises a TM motor, an ISG motor, a speed reducer, a double motor controller and the like, wherein the existing current sensor is often arranged in an electric control dry cavity and is not in contact with oil liquid, and then is connected with a motor cavity through an independent six-phase copper bar and a plastic coated piece, and the connection mode exists: and the number of structural parts is large, and the cost is relatively high. When the double electric control is integrated with a speed reducer or a motor, the high-voltage alternating current copper bar can penetrate through the cavity of the controller and enter the cavity containing lubricating oil or cooling oil, the interface is the interface which is the most critical to the sealing of the controller, and the failure of the sealing can lead to the oil inlet in the controller and the product failure.
The existing copper bar injection molding piece is often reserved with a seal at the joint of the motor and the controller, for example, radial seal or end face seal is formed between the injection molding piece and the shell, and the copper bar and the injection molding piece are integrally injection molded or are sealed by adopting an assembled sealing ring; but to the scene that the inside integration of current sensor has silicon steel sheet magnetic ring and is used for sealed fluid, with fluid long-term contact after the current sensor moulds plastics, the sealing risk is great.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a current sensor suitable for double-electric-control oil-cooled sealing.
In a first aspect, the present utility model provides a current sensor suitable for dual electrically controlled oil-cooled sealing, the current sensor comprising: a cuboid-shaped shell, wherein a plurality of busbar avoiding holes which are vertically arranged are formed in the shell, an annular magnetic core is arranged on the periphery of each busbar avoiding hole, and a PCBA plate which is electrically connected with the magnetic core is arranged on the outer side wall of the shell; and a sealing member is arranged between the busbar avoiding hole and the busbar, and a sealing structure is arranged outside the shell.
With reference to the first aspect, in some optional embodiments, the sealing structure includes: and a circle of annular outer sealing groove, wherein an outer sealing ring is arranged in the outer sealing groove.
With reference to the first aspect, in some optional embodiments, the sealing structure includes: and an annular runway-shaped sealing surface arranged on the periphery of the upper end surface of the shell, wherein the sealing surface is provided with sealant.
With reference to the first aspect, in some optional embodiments, the sealing member includes: and a conical flaring arranged at the upper end of the busbar avoiding hole, wherein a conical sealing sleeve is arranged in the flaring, and a busbar hole is arranged in the sealing sleeve.
With reference to the first aspect, in some optional embodiments, the sealing member includes: and a circle of inner sealing groove is arranged at the lower end of the busbar avoiding hole, wherein an annular sealing gasket is arranged in the inner sealing groove, and the busbar hole is arranged in the sealing gasket.
With reference to the first aspect, in some optional embodiments, the number of the busbar includes 6, and all the busbars are arranged in a row.
With reference to the first aspect, in some alternative embodiments, positions of adjacent magnetic cores are arranged in a staggered manner.
With reference to the first aspect, in some optional embodiments, the housing is injection molded, and the magnetic core is embedded inside the housing.
The technical scheme provided by the utility model has the beneficial effects that: the current sensor structure suitable for double-electric-control oil-cooling sealing has high integration level, not only maintains the characteristics of a current sensor, but also realizes the sealing of electric control and motor cavity oil; the shell, the inner side and the outer side of the utility model are all sealed by 2 channels, so as to solve the risks of potential manufacturing cracks, durable post-airtight problem and the like of the plastic shell; specifically: the shell is matched with the copper bar and the motor side shell in an installation mode, the inner side of the shell is sealed with the motor shell through 2 sealing rings, and the outer side of the shell is sealed through 1 sealing ring and 1 sealing glue; the double-seal design can improve the reliability of the product, avoid potential cracks and airtight risks, and prolong the service life of the product.
Drawings
The utility model is described in detail below with reference to examples and figures, wherein:
FIG. 1 is a cross-sectional view of a current sensor suitable for use in a dual electrically controlled oil-cooled seal;
FIG. 2 is a perspective view of a current sensor suitable for use in a dual electrically controlled oil-cooled seal;
FIG. 3 is an assembly diagram of a current sensor and current output assembly in a current sensor adapted for dual electrically controlled oil-cooled sealing;
FIG. 4 is an exploded view of a current sensor suitable for use in a dual electrically controlled oil-cooled seal;
reference numerals illustrate: 1-shell, 2-busbar avoidance hole, 3-magnetic core, 4-PCBA board, 5-busbar, 6-outer seal groove, 7-sealing surface, 2 a-flaring, 2 b-inner seal groove, 8-motor shell, 10-motor shell window.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model provides a current sensor suitable for double-electric-control oil-cooling sealing, which integrates a traditional current sensor with a sealing plastic part, simplifies the number of parts, simultaneously solves the problem that the current sensor is directly used for oil-liquid sealing after being integrated with a copper bar, and improves the integration level and reliability of products.
The utility model discloses a current sensor suitable for double-electric-control oil-cooling sealing, wherein fig. 1 and 2 respectively show a cross-sectional view and a perspective view of the current sensor suitable for double-electric-control oil-cooling sealing, and the current sensor suitable for double-electric-control oil-cooling sealing is specifically described below with reference to fig. 1 and 2.
One current sensor suitable for use in a dual electronically controlled oil-cooled seal in the present utility model may include, but is not limited to: a cuboid-shaped shell 1, wherein a plurality of busbar avoiding holes 2 which are vertically arranged are formed in the shell 1, an annular magnetic core 3 is arranged on the periphery of each busbar avoiding hole 2, and a PCBA 4 electrically connected with the magnetic core 3 is arranged on the outer side wall of the shell 1; a sealing member is arranged between the busbar avoiding hole 2 and the busbar 5, and a sealing structure is arranged on the outer side of the shell 1.
Referring to fig. 4, an exploded view of a current sensor suitable for dual-electric control oil-cooled sealing is shown, and an icon 8 indicates a motor housing, oil is arranged above the motor housing, and a busbar 5 of a double-electric controller passes through the current sensor from bottom to top and passes through a window 10 of the motor housing to enter the interior of the motor housing. The current sensor needs to be provided with a seal with the motor shell and a seal with the busbar at the same time so as to prevent leakage of oil. Fig. 3 is a perspective view of the current sensor after the assembly with the busbar 5 is completed.
A current sensor suitable for dual electrically controlled oil-cooled sealing is shown in connection with fig. 1 and 2, and the sealing structure may include, but is not limited to: the outer side wall of the shell 1 is provided with a ring-shaped outer sealing groove 6, and an outer sealing ring is placed in the outer sealing groove. After assembly, the outer perimeter of the outer seal ring is the sidewall of the motor housing window 10. The outer sealing ring is made of elastic rubber, and can use a current sensor to have an axial sealing effect.
A current sensor suitable for dual electrically controlled oil-cooled sealing is shown in connection with fig. 1 and 2, and the sealing structure may include, but is not limited to: an annular race-track-shaped sealing surface 7 is provided on the outer periphery of the upper end surface of the housing 1, wherein a sealant is provided on the sealing surface 7. After assembly, the sealing surface 7 abuts against the end face of the motor housing window 10 (the cross section of the motor housing window 10 is stepped, and thus has side walls and an end face). The sealant on the sealing surface 7 can have good end face sealing effect by using the current sensor.
Referring to fig. 1, a cross-sectional view of a current sensor suitable for dual electrically controlled oil-cooled sealing is shown, the sealing member may include, but is not limited to: the upper end of the busbar avoiding hole 2 is provided with a conical flaring 2a, a conical sealing sleeve is arranged in the flaring, and a busbar hole (through which the busbar 5 passes) is arranged in the sealing sleeve. The sealing sleeve is made of elastic rubber, and after assembly, the sealing sleeve, the flaring 2a and the busbar 5 generate good sealing.
Referring to a sectional view of a current sensor suitable for dual-electric-control oil-cooling sealing shown in fig. 1, a circle of inner sealing groove 2b is arranged at the lower end of a busbar avoiding hole 2, an annular sealing gasket is arranged in the inner sealing groove, and busbar holes (busbar 5 passes through the busbar holes) are arranged in the sealing gasket. The gasket is made of elastic rubber, and after assembly, the gasket generates good sealing with the sealing groove 2b and the busbar 5. Two seals are provided between the busbar 5 and the current sensor. The double-seal design can improve the reliability of the product, avoid potential cracks and airtight risks and prolong the service life of the product.
The number of the busbar 5 may include, but is not limited to, 6, and all the busbars 5 are arranged in a row, which is a current sensor suitable for double electrically controlled oil-cooled sealing, as shown in connection with fig. 3 and 4. Three of the 6 busbar are power lines of the TM motor, and the other three busbar are power lines of the ISG motor.
Referring to fig. 1, a cross-sectional view of a current sensor suitable for dual-electric-control oil-cooled sealing is shown, and positions of adjacent magnetic cores 3 are distributed in a vertically staggered manner. As shown in fig. 1, the positions of the magnetic cores 3 of the first busbar avoiding holes 2 on the left are above, and the positions of the magnetic cores 3 of the second busbar avoiding holes 2 on the left are below, so that the widths of the current sensors can be effectively reduced through staggered arrangement.
Referring to fig. 1, a sectional view of a current sensor suitable for dual-electric control oil-cooled sealing is shown, the housing 1 is injection molded, and the magnetic core 3 is embedded in the housing 1.
The above examples are illustrative only and are not intended to be limiting. Any equivalent modifications or variations to the present utility model without departing from the spirit and scope of the present utility model are intended to be included in the scope of the following claims.
Claims (8)
1. A current sensor suitable for dual electronic control oil-cooled sealing, comprising: a cuboid-shaped shell (1), wherein a plurality of busbar avoiding holes (2) which are vertically arranged are formed in the shell (1), an annular magnetic core (3) is arranged at the periphery of each busbar avoiding hole (2), and a PCBA (printed circuit board) (4) electrically connected with the magnetic core (3) is arranged on the outer side wall of the shell (1); a sealing member is arranged between the busbar avoiding hole (2) and the busbar (5), and a sealing structure is arranged on the outer side of the shell (1).
2. The current sensor adapted for dual electrically controlled oil-cooled seal of claim 1, wherein the seal structure comprises: and a ring-shaped outer sealing groove (6) is arranged, and an outer sealing ring is arranged in the outer sealing groove.
3. The current sensor adapted for dual electrically controlled oil-cooled seal of claim 1, wherein the seal structure comprises: an annular runway-shaped sealing surface (7) is arranged on the periphery of the upper end surface of the shell (1), wherein the sealing surface (7) is provided with sealant.
4. The current sensor adapted for dual electrically controlled oil-cooled sealing of claim 1, wherein the sealing member comprises: and a conical flaring (2 a) is arranged at the upper end of the busbar avoiding hole (2), wherein a conical sealing sleeve is arranged in the flaring (2 a), and a busbar hole is arranged in the sealing sleeve.
5. The current sensor adapted for dual electrically controlled oil-cooled sealing of claim 1, wherein the sealing member comprises: and a circle of inner sealing groove (2 b) is arranged at the lower end of the busbar avoiding hole (2), wherein an annular sealing gasket is arranged in the inner sealing groove (2 b), and busbar holes are arranged in the sealing gasket.
6. A current sensor suitable for double electrically controlled oil-cooled sealing according to claim 1, characterized in that the number of busbar (5) comprises 6, all of the busbars (5) being arranged in a row.
7. A current sensor suitable for double electrically controlled oil-cooled sealing according to claim 1, characterized in that the positions of adjacent magnetic cores (3) are arranged in a staggered manner.
8. The current sensor suitable for double electric control oil cold sealing according to claim 1, characterized in that the housing (1) is injection molded, the magnetic core (3) being embedded inside the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320075980.6U CN219871411U (en) | 2023-01-09 | 2023-01-09 | Current sensor suitable for double-electric-control oil-cooled seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320075980.6U CN219871411U (en) | 2023-01-09 | 2023-01-09 | Current sensor suitable for double-electric-control oil-cooled seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219871411U true CN219871411U (en) | 2023-10-20 |
Family
ID=88370885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320075980.6U Active CN219871411U (en) | 2023-01-09 | 2023-01-09 | Current sensor suitable for double-electric-control oil-cooled seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219871411U (en) |
-
2023
- 2023-01-09 CN CN202320075980.6U patent/CN219871411U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |