CN210839304U - AC power controller with current limiting function - Google Patents
AC power controller with current limiting function Download PDFInfo
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- CN210839304U CN210839304U CN201921767060.0U CN201921767060U CN210839304U CN 210839304 U CN210839304 U CN 210839304U CN 201921767060 U CN201921767060 U CN 201921767060U CN 210839304 U CN210839304 U CN 210839304U
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- heat dissipation
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Abstract
The utility model discloses an alternating current power controller with current-limiting function, including circuit board, casing, heat abstractor and access cover, the both sides of casing all are fixed with heat abstractor, and one side of casing is fixed with the access cover, the inside of casing is provided with the cell body, and the inside of cell body is fixed with the circuit board, the central position department of circuit board is fixed with central processing module, and the even coating in the outside of carborundum wearing layer has the paint layer. The utility model discloses an install casing, cell body, circuit board, central processing module, wire, current sensor and resistance, central processing module passes through the input electric connection of wire and external equipment (electric motor car motor), and the magnitude of electric current is passed through in the current sensor response, exceeds the setting value after with signal transmission to central processing module, and control resistance increases, and then reduces current intensity, restricts operating current in safety range, avoids the electric current too big to burn out components and parts.
Description
Technical Field
The utility model relates to a controller technical field specifically is an alternating current power controller with current limiting function.
Background
The alternating current power controller is mainly used in the field of electric vehicles, is a core control device for controlling the starting, running, advancing and retreating, speed and stopping of a motor of the electric vehicle and other electronic devices of the electric vehicle, is like the brain of the electric vehicle, and is an important part on the electric vehicle, but most of the existing devices have partial problems, specifically as follows;
1. such ac power controllers mostly do not have a current limiting function, and when braking or acceleration occurs, an overcurrent fault sometimes occurs in the motor controller.
2. The alternating current power controller has poor heat dissipation effect, internal heat can not be accumulated and dissipated after long-time use, internal parts can be heated and aged, the sealing performance of the device is poor, and water easily permeates into the device to cause short circuit;
3. the shell of the alternating current power controller has poor structural strength and pressure resistance, is easy to damage when being extruded and collided by the outside, and has short service life.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an alternating current power controller with current-limiting function to what provide does not possess current-limiting function, heat dissipation and leakproofness among the solution above-mentioned background art relatively poor and the shorter problem of life.
In order to achieve the above object, the utility model provides a following technical scheme: alternating current power controller with current-limiting function, including circuit board, casing, heat abstractor and access cover, the both sides of casing all are fixed with heat abstractor, and one side of casing is fixed with the access cover, the inside of casing is provided with the cell body, and the inside of cell body is fixed with the circuit board, the central point department of circuit board is fixed with central processing module, and central processing module's both ends all are provided with the wire, all be fixed with current sensor on the wire, and all be fixed with resistance on the wire of current sensor one side, the inside top of cell body is provided with temperature sensor, the inside of casing lateral wall all is provided with the carbon steel enhancement layer, and the both sides of carbon steel enhancement layer all are provided with the crushing layer, the even coating in the outside of casing has diamond dust wearing layer, and the even coating in the outside of diamond dust wearing layer has the paint layer.
Preferably, the inside one side that is close to the casing of heat abstractor all is provided with heat radiation fins, and the inside one side of keeping away from the casing of heat abstractor all is fixed with cooling fan, heat abstractor's outside evenly is provided with the heat dissipation wing, and all is provided with the filter screen on the heat dissipation wing.
Preferably, the heat dissipation fins are made of copper and are distributed at equal intervals.
Preferably, the edge of access cover all is provided with the preformed hole, and the casing is close to one side of access cover evenly be provided with preformed hole assorted screw, the screw all is connected with the preformed hole through fixing bolt.
Preferably, one side that the access cover is close to the casing evenly is provided with the fixture block, and one side that the casing is close to the access cover evenly is provided with fixture block assorted draw-in groove, and the fixture block both sides all are provided with rubber packing with the junction of draw-in groove.
Preferably, the reinforcing ribs are uniformly arranged inside the carbon steel reinforcing layer and are of triangular structures.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) this alternating current power controller with current-limiting function is crossed and is installed the casing, the cell body, the circuit board, central processing module, the wire, current sensor and resistance, central processing module passes through the wire and the input electric connection of external equipment (electric motor car motor), the magnitude of electric current is passed through in the current sensor response, exceed with signal transmission to central processing module after the setting value, control resistance increases, and then reduce current intensity, with the operating current restriction in safety range, avoid the too big components and parts that burn out of electric current, the security improves.
(2) This alternating current power controller with current-limiting function is through installing heat abstractor, heat radiation fins, cooling fan, heat dissipation wing and temperature sensor, and heat radiation fins is copper, and inside the heat abstractor was transmitted with the heat that produces in the casing to discharge the outside through the heat dissipation wing, in addition, the inside temperature of temperature sensor induction system, after surpassing the setting value, cooling fan operation accelerates the steam circulation, and intelligence heat dissipation improves the radiating efficiency, avoids internals thermal ageing.
(3) This alternating current power controller with current-limiting function is through installing the access cover, evenly be provided with the preformed hole on the access cover, one side that the casing is close to the access cover evenly be provided with preformed hole assorted screw, through fixing bolt connection screw and preformed hole, one side that the access cover is close to the casing evenly is provided with the fixture block, one side that the casing is close to the access cover evenly is provided with fixture block assorted draw-in groove, the fixture block both sides all are provided with the rubber packing pad with the junction of draw-in groove, be convenient for increase the seal when carrying out the installation of access cover, avoid the inside damage that causes the internals of water infiltration.
(4) This alternating current power controller with current-limiting function is provided with the carbon steel enhancement layer through the inside at the casing lateral wall, the inside of carbon steel enhancement layer evenly is provided with the strengthening rib of triangle-shaped structure, be convenient for improve casing self structural strength, meanwhile, the both sides of carbon steel enhancement layer all are provided with the resistance to compression layer that the longitudinal section is half circular arc type structure, the resistance to compression shock-absorbing capacity of improving device, make difficult to damage when receiving external extrusion collision, the even coating in the outside of casing has diamond dust wearing layer, the wearability of improving device, and the service life is prolonged.
Drawings
Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;
FIG. 2 is a schematic view of the appearance structure of the present invention;
FIG. 3 is a schematic view of the side view of the present invention;
fig. 4 is an enlarged cross-sectional view of the utility model at a in fig. 1;
fig. 5 is a system block diagram of the present invention.
In the figure: 1. a screw hole; 2. a wire; 3. a current sensor; 4. a central processing module; 5. a temperature sensor; 6. a circuit board; 7. a resistance; 8. a trough body; 9. a housing; 10. heat dissipation fins; 11. a heat radiation fan; 12. a heat sink; 13. heat dissipation fins; 14. an access cover; 15. reserving a hole; 16. a rubber gasket; 17. a clamping block; 18. reinforcing ribs; 19. a pressure resistant layer; 20. a carborundum wear-resistant layer; 21. a paint layer; 22. a carbon steel reinforcing layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides an embodiment: the alternating current power controller with the current limiting function comprises a circuit board 6, a shell 9, a heat dissipation device 12 and an access cover 14, wherein the heat dissipation device 12 is fixed on each of two sides of the shell 9, heat dissipation fins 10 are arranged on one side, close to the shell 9, inside the heat dissipation device 12, a heat dissipation fan 11 is fixed on one side, far away from the shell 9, inside the heat dissipation device 12, heat dissipation fins 13 are uniformly arranged outside the heat dissipation device 12, filter screens are arranged on the heat dissipation fins 13, the heat dissipation fins 10 are made of copper, and the heat dissipation fins 10 are distributed at equal intervals;
when the device is operated, the heat dissipation fins 10 transmit heat generated in the shell 9 to the inside of the heat dissipation device 12 and are exhausted outside through the heat dissipation fins 13, in addition, the temperature sensor 5 senses the temperature in the device, and after the temperature exceeds a set value, the heat dissipation fan 11 operates to accelerate hot air circulation and dissipate heat intelligently, so that the heat dissipation efficiency is improved, and internal parts are prevented from being heated and aged;
an access cover 14 is fixed on one side of the shell 9, a preformed hole 15 is formed in the edge of the access cover 14, screw holes 1 matched with the preformed hole 15 are uniformly formed in one side, close to the access cover 14, of the shell 9, the screw holes 1 are connected with the preformed hole 15 through fixing bolts, clamping blocks 17 are uniformly arranged on one side, close to the shell 9, of the access cover 14, clamping grooves matched with the clamping blocks 17 are uniformly formed in one side, close to the access cover 14, of the shell 9, and rubber sealing gaskets 16 are arranged at the connection positions of the two sides of each clamping block 17 and each clamping groove;
the sealing performance is convenient to increase when the access cover 14 is installed and fixed, and the damage of internal parts caused by water body permeating into the interior is avoided;
a tank body 8 is arranged inside the shell 9, a circuit board 6 is fixed inside the tank body 8, a central processing module 4 is fixed at the central position of the circuit board 6, the model of the central processing module 4 can be S7-200CN, both ends of the central processing module 4 are respectively provided with a lead 2, the leads 2 are respectively fixed with a current sensor 3, the model of the current sensor 3 can be XDT-USB-DIAN, a resistor 7 is respectively fixed on the lead 2 at one side of the current sensor 3, the top end inside the tank body 8 is provided with a temperature sensor 5, the model of the temperature sensor 5 can be CWDZ11, a carbon steel reinforcing layer 22 is respectively arranged inside the side wall of the shell 9, reinforcing ribs 18 are uniformly arranged inside the carbon steel reinforcing layer 22, the reinforcing ribs 18 are respectively in a triangular structure, the structural strength of the device is convenient to improve, the structural strength of the device is not easy to damage, and both sides of the carbon steel reinforcing, the outer side of the shell 9 is uniformly coated with a carborundum wear-resistant layer 20, and the outer side of the carborundum wear-resistant layer 20 is uniformly coated with a paint layer 21;
the output ends of the temperature sensor 5 and the current sensor 3 are electrically connected with the input end of the central processing module 4 through electric wires, and the output end of the central processing module 4 is electrically connected with the input ends of the heat dissipation fan 11 and the resistor 7 through electric wires.
The working principle is as follows: when the device is used, the device is fixed at a use position, the central processing module 4 is electrically connected with an input end of external equipment (an electric vehicle motor) through a lead 2, the current sensor 3 senses the passing current, the signal is transmitted to the central processing module 4 after the passing current exceeds a set value, the control resistor 7 is increased, the current intensity is further reduced, the working current is limited in a safe range, components are prevented from being burnt due to overlarge current, the safety is improved, when the device runs, the heat dissipation fins 10 transmit heat generated in the shell 9 to the inside of the heat dissipation device 12 and are discharged outside through the heat dissipation fins 13, in addition, the temperature sensor 5 senses the temperature in the device, after the temperature exceeds the set value, the heat dissipation fan 11 runs to accelerate hot gas circulation, intelligent heat dissipation is realized, the heat dissipation efficiency is improved, internal parts are prevented from being heated and aged, reserved holes 15 are uniformly formed in the access cover 14, screw holes 1 matched with the reserved holes 15 are uniformly formed in one side, the screw hole 1 and the preformed hole 15 are connected through a fixing bolt, so that cover opening and maintenance are facilitated when a fault occurs, in addition, one side, close to the shell 9, of the access cover 14 is uniformly provided with a clamping block 17, one side, close to the access cover 14, of the shell 9 is uniformly provided with a clamping groove matched with the clamping block 17, rubber sealing gaskets 16 are arranged at the joints of the two sides of the clamping block 17 and the clamping groove, so that the sealing performance is increased when the access cover 14 is installed and fixed, the damage to internal parts caused by water body infiltration is avoided, a carbon steel reinforcing layer 22 is arranged inside the side wall of the shell 9, reinforcing ribs 18 of a triangular structure inside the carbon steel reinforcing layer 22 facilitate the improvement of the structural strength of the shell 9, meanwhile, a compression resistant layer 19 of a semi-circular arc structure facilitates the improvement of the compression resistant buffer performance of the device, the device is not easy to damage when, the wear resistance of the device is improved, and the service life is prolonged.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. Alternating current power controller with current-limiting function, including circuit board (6), casing (9), heat abstractor (12) and access cover (14), its characterized in that: the heat dissipation device is characterized in that heat dissipation devices (12) are fixed on two sides of the shell (9), an access cover (14) is fixed on one side of the shell (9), a groove body (8) is arranged inside the shell (9), a circuit board (6) is fixed inside the groove body (8), a central processing module (4) is fixed at the central position of the circuit board (6), wires (2) are arranged at two ends of the central processing module (4), a current sensor (3) is fixed on each wire (2), a resistor (7) is fixed on each wire (2) on one side of the current sensor (3), a temperature sensor (5) is arranged at the top end inside the groove body (8), carbon steel reinforcing layers (22) are arranged inside the side wall of the shell (9), pressure resistant layers (19) are arranged on two sides of each carbon steel reinforcing layer (22), and carborundum wear resistant layers (20) are uniformly coated on the outer side of the shell (9), and the outer side of the carborundum wear-resistant layer (20) is uniformly coated with a paint layer (21).
2. The ac power controller with current limiting function according to claim 1, wherein: the heat dissipation device is characterized in that heat dissipation fins (10) are arranged on one side, close to the shell (9), of the interior of the heat dissipation device (12), a heat dissipation fan (11) is fixed on one side, far away from the shell (9), of the interior of the heat dissipation device (12), heat dissipation fins (13) are evenly arranged on the exterior of the heat dissipation device (12), and filter screens are arranged on the heat dissipation fins (13).
3. The ac power controller with current limiting function according to claim 2, wherein: the radiating fins (10) are made of copper, and the radiating fins (10) are distributed at equal intervals.
4. The ac power controller with current limiting function according to claim 1, wherein: the edge of access cover (14) all is provided with preformed hole (15), and one side that casing (9) are close to access cover (14) evenly be provided with preformed hole (15) assorted screw (1), screw (1) all are connected with preformed hole (15) through fixing bolt.
5. The ac power controller with current limiting function according to claim 1, wherein: one side that access cover (14) is close to casing (9) evenly is provided with fixture block (17), and one side that casing (9) is close to access cover (14) evenly is provided with fixture block (17) assorted draw-in groove, and the junction of fixture block (17) both sides and draw-in groove all is provided with rubber packing pad (16).
6. The ac power controller with current limiting function according to claim 1, wherein: reinforcing ribs (18) are uniformly arranged inside the carbon steel reinforcing layer (22), and the reinforcing ribs (18) are all of triangular structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767060.0U CN210839304U (en) | 2019-10-21 | 2019-10-21 | AC power controller with current limiting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921767060.0U CN210839304U (en) | 2019-10-21 | 2019-10-21 | AC power controller with current limiting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210839304U true CN210839304U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921767060.0U Active CN210839304U (en) | 2019-10-21 | 2019-10-21 | AC power controller with current limiting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210839304U (en) |
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2019
- 2019-10-21 CN CN201921767060.0U patent/CN210839304U/en active Active
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