CN105578845A - Electric vehicle controller - Google Patents
Electric vehicle controller Download PDFInfo
- Publication number
- CN105578845A CN105578845A CN201511015686.2A CN201511015686A CN105578845A CN 105578845 A CN105578845 A CN 105578845A CN 201511015686 A CN201511015686 A CN 201511015686A CN 105578845 A CN105578845 A CN 105578845A
- Authority
- CN
- China
- Prior art keywords
- binding post
- electric vehicle
- housing
- integrated circuit
- controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20845—Modifications to facilitate cooling, ventilating, or heating for automotive electronic casings
- H05K7/20854—Heat transfer by conduction from internal heat source to heat radiating structure
Abstract
The invention is suitable for the technical field of electric vehicles. The provided electric vehicle controller comprises a radiator, a first shell and an integrated circuit structure, wherein the first shell and the radiator are surrounded to form an accommodating space; the integrated circuit structure is fixed on the radiator; the first shell comprises a shell part and lateral walls; the lateral walls extend along the periphery of the shell part; the radiator comprises a cooling plate, a plurality of cooling fins and extension walls; the plurality of cooling fins are arranged side by side at intervals; and the extension walls are close to the outer sides of two opposite lateral walls. According to the electric vehicle controller, the integrated circuit structure is fixed by the cooling plate; and the cooling plate and the shell are oppositely arranged to form a shell structure of the electric vehicle controller, so that the cooling area of the integrated circuit structure is increased; the cooling efficiency is improved; the cooling effect is improved by integral arrangement of the cooling plate laminated with the integrated circuit and the cooling fins. Heat generated by the integrated circuit structure is emitted by arranging extension arms at the outer sides of the lateral walls, so that the cooling area is effectively increased; and the cooling efficiency is improved.
Description
Technical field
The invention belongs to vehicle technology field, particularly relate to a kind of controller for electric vehicle.
Background technology
Electric motor car has because of it preferred traffic instrument that advantage such as environmental protection, light and fast has become the trip of most people's short distance.Electric motor car comprises: electric bicycle, battery-operated motor cycle, electro-tricycle, electric sightseeing vehicle, electric patrol car, electric shopping cart, Segway Human Transporter etc.
Controller for electric vehicle is as one of the four large parts of electric motor car, and in electric motor car, play vital effect, the quality of controller decides the quality of a electric motor car to a certain extent.Controller is the core maincenter of electric motor car; need to be interconnected with each outside and auxiliary equipment; as with the connection of motor part and with connection of display section etc.; and radiator is essential element in controller; can thermolysis be played on the one hand, the effect of protection internal electronic device and wiring board can also be played on the other hand.
Existing controller for electric vehicle structure adopts usually the form of the metal shell sealing of cavity type, the output of signal adopts the lead-in wire way of output.The shell mechanism of cavity type, concentrates on narrower one side during power tube heat radiation, when power tube steep temperature rise heat is difficult to Quick diffusing under severe operating mode, easily causes power tube to cross cause thermal damage; And the mode that lead-in wire exports, because the insertion connector of functional line is more, loaded down with trivial details when causing car load to assemble, the situations such as investigation fault is difficult.
For this reason, the radiating effect how improving controller for electric vehicle has become industry technical problem urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of controller for electric vehicle, be intended to solve the technical problem how improving the radiating effect of controller for electric vehicle in prior art.
The present invention realizes like this, a kind of controller for electric vehicle, comprise the radiator for dispelling the heat, be oppositely arranged with described radiator and with described radiator enclose form receiving space the first housing, be fixed on described radiator and the integrated circuit structure be contained in described receiving space; The sidewall that described first housing comprises housing section and extends along described housing section surrounding, described radiator comprising heating panel, multiplely giving prominence to extension and the radiating fin that arranges of spacing side by side and to extend along described heating panel dual-side towards described sidewall one lateral buckling and near the wall extension of two relatively described side-wall outer side, each described radiating fin and described integrated circuit structure are arranged on two apparent surfaces of described heating panel respectively along described heating panel towards deviating from described first housing side.
Further, described integrated circuit structure comprises and is sticked power tube and fits in power amplifier board on heating panel, be electrically connected with described power amplifier board and the control board of mutual stacked setting and fixed installation and the capacitor be electrically connected on described control board or described power amplifier board, and described power amplifier board is between described heating panel and described control board.
Further, described integrated circuit structure also comprises to be fixed and is electrically connected on described power amplifier board to be connected to the first binding post of motor and to be electrically connected on described power amplifier board and described control board and to be connected to the second binding post of power supply, the contact pads of described second binding post and described control board.
Further, described integrated circuit structure also comprises multiple being arranged on described power amplifier board to support the metallic gasket of described first binding post and described second binding post respectively.
Further, described housing section is provided with described first binding post of multiple confession and described second binding post and extend out to via outside described receiving space, described controller for electric vehicle also comprises the second housing be fastened and connected on described first housing, described second housing is provided with to communicate with described via and is connected to the connecting hole of described first binding post and described second binding post for External cable, and described connecting hole communicates with described via is non axial.
Further, described second housing is provided with in the position corresponding with described capacitor for the exposed breach of described housing section, and described second binding post is positioned at described capacitor both sides and is connected with described External cable by the via being arranged at described breach both sides.
Further, two apparent surfaces of each described radiating fin are corrugated.
Further, described heating panel, described radiating fin and described wall extension are by one-body molded and make, described wall extension comprises pressing close to the interior wall extension of described sidewall and extension wall spaced with described interior wall extension, and described interior wall extension and the facing surface of described extension wall are that corrugated is arranged.
The present invention relative to the technique effect of prior art is: this controller for electric vehicle utilizes described heating panel to fix described integrated circuit structure and this heating panel and described housing are oppositely arranged jointly to be formed the shell mechanism of described controller for electric vehicle, add the area of dissipation of described integrated circuit structure, improve radiating efficiency; And utilize laminating to be provided with the heating panel of described integrated circuit structure and radiating fin is wholely set to improve radiating effect, the heat that described integrated circuit structure is produced can be passed to rapidly on described radiating fin through described heating panel and be distributed, radiating effect is more obvious and structure is simple, easy accessibility; Distributing with the heat produced described integrated circuit structure by arranging adjutage at described side-wall outer side, effectively increasing area of dissipation, improve radiating efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in the embodiment of the present invention or description of the prior art below, apparently, accompanying drawing described is below only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart that the embodiment of the present invention provides controller for electric vehicle;
Fig. 2 is the cutaway view of controller for electric vehicle in Fig. 1;
Fig. 3 is the exploded view of controller for electric vehicle in Fig. 1;
Fig. 4 is the structure chart of the first housing in Fig. 2;
Fig. 5 is the structure chart of the second housing in Fig. 2.
Description of reference numerals:
10 radiator 42 power amplifier boards
12 heating panel 43 control boards
120 fixing hole 44 capacitors
14 radiating fin 45 power tubes
15 wall extension 46 first binding posts
Wall extension 47 second binding post in 150
152 extension wall 48 metallic gaskets
16 fixed head 50 first securing members
20 first housing 52 second securing members
22 housing section 54 the 3rd securing member
24 via 60 second housings
26 sidewall 62 connecting holes
30 receiving space 64 breach
40 integrated circuit structure 70 cable clamp
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Please refer to Fig. 1 to Fig. 5, the controller for electric vehicle that the embodiment of the present invention provides comprise radiator 10 for dispelling the heat, be oppositely arranged with described radiator 10 and with described radiator 10 enclose form receiving space 30 the first housing 20, be fixed on described radiator 10 and the integrated circuit structure 40 be contained in described receiving space 30; The sidewall 26 that described first housing 20 comprises housing section 22 and extends along described housing section 22 surrounding, described radiator 10 comprising heating panel 12, multiplely giving prominence to extension and the radiating fin 14 that arranges of spacing side by side and extending along described heating panel 12 dual-side towards described sidewall 26 1 lateral buckling and wall extension 15 outside two relatively described sidewalls 26 along described heating panel 12 towards deviating from described first housing 20 side, and each described radiating fin 14 is arranged on two apparent surfaces of described heating panel 12 respectively with described integrated circuit structure 40.
The controller for electric vehicle that the embodiment of the present invention provides utilizes described heating panel 12 to fix described integrated circuit structure 40 and this heating panel 12 and described housing are oppositely arranged jointly to be formed the shell mechanism of described controller for electric vehicle, add the area of dissipation of described integrated circuit structure 40, improve radiating efficiency; And the heating panel 12 utilizing laminating to be provided with described integrated circuit structure 40 is wholely set to improve radiating effect with radiating fin 14, the heat that described integrated circuit structure 40 is produced can be passed to rapidly on described radiating fin 14 through described heating panel 12 and be distributed, radiating effect is more obvious and structure is simple, easy accessibility; By distributing with the heat produced described integrated circuit structure 40 at described sidewall 26 arranged outside adjutage, effectively increasing area of dissipation, improve radiating efficiency.
In this embodiment, described radiator 10 is made up of Heat Conduction Material, such as aluminium section bar.Described first housing 20 is made up of nonmetallic materials, such as, and plastics etc.
In this embodiment, mutually vertical and close described first housing 20 of described wall extension 15 and described heating panel 12, with the heat that the described integrated circuit structure 40 distributed in described receiving space 30 produces, and, the U-shaped structure of whole described radiator 10 in open type, to increase cross-ventilation, improves radiating efficiency.
In this embodiment, described heating panel 12 is provided with multiple fixing hole 120, utilize the first securing member 50 to lock onto on described sidewall 26 through described fixing hole 120, to make described radiator 10 be fixedly connected with described first housing 20, described first securing member 50 can be screw or screw etc.
Please refer to Fig. 2 and Fig. 3, further, described integrated circuit structure 40 comprises and is sticked power tube 45 and fits in power amplifier board 42 on heating panel 12, be electrically connected with described power amplifier board 42 and the control board 43 of mutual stacked setting and fixedly mount and be electrically connected at the capacitor 44 on described control board 43 or described power amplifier board 42, and described power amplifier board 42 is between described heating panel 12 and described control board 43.By described power amplifier board 42 is fitted in one of described heating panel 12 on the surface, quickly move through described heating panel 12 to enable heat and pass, improve radiating efficiency.By by described power amplifier board 42 with the stacked setting of described control board 43 to expand the integrated quantity of circuit and high or low power electronic devices and components be provided separately, to improve the bearing capacity of described power amplifier board 42 and described control board 43.High-power electronic component is arranged on described power amplifier board 42, and the heat produced to make high-power electronic component is passed rapidly by described power amplifier board 42 and described heating panel 12, reduces the interference of thermal radiation to described control board 43.Preferably, high-power electronic component can be power tube 45, power-line terminal, power capacitor etc.
In this embodiment, described capacitor 44 is power capacitor.In other embodiments, described capacitor 44 can also be other big current electric capacity, does not enumerate herein.
Please refer to Fig. 2 and Fig. 3, in this embodiment, described power amplifier board 42 is also provided with multiple described power tube 45, to realize high-power output.Preferably, not contacting with each other between described power tube 45 and described control board 43, be directly passed on described control board 43 with the heat avoiding described power tube 45 to produce, by forming gap between to form cross-ventilation space, and being conducive to heat radiation.
Please refer to Fig. 2 and Fig. 3, further, described integrated circuit structure 40 also comprises to be fixed and is electrically connected on to be connected to the first binding post 46 of motor and to be electrically connected on described power amplifier board 42 and described control board 43 and to be connected to the second binding post 47 of power supply on described power amplifier board 42, the contact pads of described second binding post 47 and described control board 43.Described first binding post 46 for connecting motor phase, and to be fixed on described power amplifier board 42 and through the through hole on described control board 43, to avoid heat to be passed in described control board 43.Described second binding post 47 is for connecting power supply and being arranged at described capacitor 44 both sides, one end is electrically connected on described power amplifier board 42 and the other end passes described control board 43, and described second binding post 47 and the contact pads on described control board 43, to realize electrical connection.
Please refer to Fig. 2 and Fig. 3, in this embodiment, utilize the second securing member 52 to be firmly fixed on described power amplifier board 42 by described first binding post 46, and utilize the 3rd securing member 54 to be firmly fixed on described power amplifier board 42 by described second binding post 47, structure is simple, easy accessibility.Preferably, for described first binding post 46, adopt two described second securing members 52 to be lock onto on described power amplifier board 42, occur during to avoid screwing or unscrew the wiring securing member above described first binding post 46 with then loosen.Similarly, for described second binding post 47, adopt two described 3rd securing members 54 to be lock onto on described power amplifier board 42, occur during to avoid screwing or unscrew the wiring securing member above described second binding post 47 with then loosen.
Please refer to Fig. 2 and Fig. 3, further, described integrated circuit structure 40 also comprises multiple being arranged on described power amplifier board 42 to support the metallic gasket 48 of described first binding post 46 and described second binding post 47 respectively.By arranging described metallic gasket 48 to make described first binding post 46 and described second binding post 47 be fixed on described power amplifier board 42 do not cause deformation to described power amplifier board 42 or damage, in addition, be also conducive to heat radiation.Preferably, described metallic gasket 48 is made of copper, and other metal materials also can be adopted to substitute copper.
Please refer to Fig. 2 to Fig. 4, further, described housing section 22 is provided with described first binding post 46 of multiple confession and described second binding post 47 and extend out to via 24 outside described receiving space 30, described controller for electric vehicle also comprises the second housing 60 be fastened and connected on described first housing 20, described second housing 60 is provided with to communicate with described via 24 and is connected to the connecting hole 62 of described first binding post 46 and described second binding post 47 for External cable, and described connecting hole 62 communicates with described via 24 is non axial.Described second housing 60 is utilized mutually to fasten to make described second housing 60 be removably connected to described first housing 60, easy accessibility with described first housing 20.Complete after described first binding post 46 is connected with External cable with described second binding post 47, described second housing 60 to be fastened on described first housing 20 to avoid described first binding post 46 and described second binding post 47 to expose, to make whole controller for electric vehicle external form succinct, attractive in appearance.Communicate for described External cable stretches between described first housing 20 with described second housing 60 by arranging described connecting hole 62 and described via 24 and be connected with described first binding post 46 and described second binding post 47.Preferably, the axis of described connecting hole 62 and the axes normal of described first binding post 46 and described second binding post 47.
Please refer to Fig. 1 to Fig. 5, further, described second housing 60 is provided with in the position corresponding with described capacitor 44 for the exposed breach 64 of described housing section 22, and described second binding post 47 is positioned at described capacitor 44 both sides and is connected with described External cable by the via 24 being arranged at described breach 64 both sides.By arranging described breach 64 to dodge the part of the coated described capacitor 44 of described first housing 20, because described capacitor 44 self has certain altitude, described first housing 20 arranges respective bump with coated described capacitor 44 in described capacitor 44 corresponding position, described second housing 60 arranges described breach 64 and passes for this bossing, be conducive to the whole height reducing whole described controller for electric vehicle, be conducive to described capacitor 44 heat spreader to a certain extent outside to receiving space 30, improve radiating efficiency.
Please refer to Fig. 2 and Fig. 3, in this embodiment, utilize cable clamp 70 External cable to be directed to described first binding post 46 or the second binding post 47, one end of described cable clamp 70 is fixed on described first binding post 46 or described second binding post 47 and the other end extends to described connecting hole 62 place and communicates with corresponding described connecting hole 62.Described cable clamp 70 forms the passage of guiding described External cable jointly with described connecting hole 62, described cable clamp 70 is between described connecting hole 62 and described capacitor 44 and one end is fixed on described first binding post 46 or the second binding post 47, pass described connecting hole 62 to make External cable to be connected on described first binding post 46 or the second binding post 47 along described cable clamp 70, play the effect of guiding and combing External cable.
Please refer to Fig. 1 to Fig. 3, further, two apparent surfaces of each described radiating fin 14 are corrugated.By corrugated is arranged on the surface of described radiating fin 14, to increase area of dissipation, improve radiating efficiency.
Please refer to Fig. 1 to Fig. 3, further, described heating panel 12, described radiating fin 14 and described wall extension 15 are by one-body molded and make, described wall extension 15 comprise pressing close to described sidewall 26 interior wall extension 150 and with the spaced extension wall 152 of described interior wall extension 150, described interior wall extension 150 surface facing with described extension wall 152 is that corrugated is arranged.Described interior wall extension 150 between described sidewall 26 and described extension wall 152, and the wave structure on described interior wall extension 150 be arranged at deviate from described sidewall 26 surface on.By arranging described interior wall extension 150 and described extension wall 152, radiating treatment is carried out with the heat produced the described integrated circuit structure 40 in described receiving space 30, and described interior wall extension 150 and described extension wall 152 interval arrange to increase area of dissipation, improve radiating efficiency.By all arranging ripple struction to increase area of dissipation further on described interior wall extension 150 and described extension wall 152, improve radiating efficiency.
Please refer to Fig. 1 to Fig. 3, in this embodiment, described radiator 10 also comprises the outer outstanding fixed head 16 extended along described heating panel 12 both sides towards described wall extension 15.By arranging described fixed head 16 to be fixedly installed on installation site by whole controller for electric vehicle, to play, fixing effect is installed.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a controller for electric vehicle, it is characterized in that, comprise the radiator for dispelling the heat, with described radiator be oppositely arranged and with described radiator enclose form receiving space the first housing, be fixed on described radiator and the integrated circuit structure be contained in described receiving space; The sidewall that described first housing comprises housing section and extends along described housing section surrounding, described radiator comprising heating panel, multiplely giving prominence to extension and the radiating fin that arranges of spacing side by side and to extend along described heating panel dual-side towards described sidewall one lateral buckling and near the wall extension of two relatively described side-wall outer side, each described radiating fin and described integrated circuit structure are arranged on two apparent surfaces of described heating panel respectively along described heating panel towards deviating from described first housing side.
2. controller for electric vehicle as claimed in claim 1, it is characterized in that, described integrated circuit structure comprises and is sticked power tube and fits in power amplifier board on heating panel, be electrically connected with described power amplifier board and the control board of mutual stacked setting and fixed installation and the capacitor be electrically connected on described control board or described power amplifier board, and described power amplifier board is between described heating panel and described control board.
3. controller for electric vehicle as claimed in claim 2, it is characterized in that, described integrated circuit structure also comprises to be fixed and is electrically connected on described power amplifier board to be connected to the first binding post of motor and to be electrically connected on described power amplifier board and described control board and to be connected to the second binding post of power supply, the contact pads of described second binding post and described control board.
4. controller for electric vehicle as claimed in claim 3, it is characterized in that, described integrated circuit structure also comprises multiple being arranged on described power amplifier board to support the metallic gasket of described first binding post and described second binding post respectively.
5. controller for electric vehicle as claimed in claim 3, it is characterized in that, described housing section is provided with described first binding post of multiple confession and described second binding post and extend out to via outside described receiving space, described controller for electric vehicle also comprises the second housing be fastened and connected on described first housing, described second housing is provided with to communicate with described via and is connected to the connecting hole of described first binding post and described second binding post for External cable, and described connecting hole communicates with described via is non axial.
6. controller for electric vehicle as claimed in claim 5, it is characterized in that, described second housing is provided with in the position corresponding with described capacitor for the exposed breach of described housing section, and described second binding post is positioned at described capacitor both sides and is connected with described External cable by the via being arranged at described breach both sides.
7. controller for electric vehicle as claimed in claim 1, it is characterized in that, two apparent surfaces of each described radiating fin are corrugated.
8. controller for electric vehicle as claimed in claim 1, it is characterized in that, described heating panel, described radiating fin and described wall extension are by one-body molded and make, described wall extension comprises pressing close to the interior wall extension of described sidewall and extension wall spaced with described interior wall extension, and described interior wall extension and the facing surface of described extension wall are that corrugated is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015686.2A CN105578845A (en) | 2015-12-28 | 2015-12-28 | Electric vehicle controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511015686.2A CN105578845A (en) | 2015-12-28 | 2015-12-28 | Electric vehicle controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105578845A true CN105578845A (en) | 2016-05-11 |
Family
ID=55888333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511015686.2A Pending CN105578845A (en) | 2015-12-28 | 2015-12-28 | Electric vehicle controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105578845A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455316A (en) * | 2016-09-30 | 2017-02-22 | 姚忠 | Circuit board connecting structure of brushless motor controller for two-wheeled or three-wheeled electromobile |
| CN110816726A (en) * | 2019-11-07 | 2020-02-21 | 徐州尚恒工控技术有限公司 | Electric tricycle controller mounting structure |
| WO2023201523A1 (en) * | 2022-04-19 | 2023-10-26 | 广东高标电子科技有限公司 | Electric vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120138274A1 (en) * | 2010-12-03 | 2012-06-07 | Kia Motors Corporation | Cooling apparatus for electric modules of hybrid electric vehicle or electric vehicle |
| CN202565215U (en) * | 2012-05-09 | 2012-11-28 | 黄永强 | DC brushless motor controller |
| CN204069589U (en) * | 2014-07-30 | 2014-12-31 | 广东高标电子科技有限公司 | Controller for electric vehicle and electric motor car |
| CN205284028U (en) * | 2015-12-28 | 2016-06-01 | 广东高标电子科技有限公司 | Controller for electric vehicle |
-
2015
- 2015-12-28 CN CN201511015686.2A patent/CN105578845A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120138274A1 (en) * | 2010-12-03 | 2012-06-07 | Kia Motors Corporation | Cooling apparatus for electric modules of hybrid electric vehicle or electric vehicle |
| CN202565215U (en) * | 2012-05-09 | 2012-11-28 | 黄永强 | DC brushless motor controller |
| CN204069589U (en) * | 2014-07-30 | 2014-12-31 | 广东高标电子科技有限公司 | Controller for electric vehicle and electric motor car |
| CN205284028U (en) * | 2015-12-28 | 2016-06-01 | 广东高标电子科技有限公司 | Controller for electric vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106455316A (en) * | 2016-09-30 | 2017-02-22 | 姚忠 | Circuit board connecting structure of brushless motor controller for two-wheeled or three-wheeled electromobile |
| CN110816726A (en) * | 2019-11-07 | 2020-02-21 | 徐州尚恒工控技术有限公司 | Electric tricycle controller mounting structure |
| WO2023201523A1 (en) * | 2022-04-19 | 2023-10-26 | 广东高标电子科技有限公司 | Electric vehicle |
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Application publication date: 20160511 |