CN216083054U - Automobile battery power supply inlet detector - Google Patents
Automobile battery power supply inlet detector Download PDFInfo
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- CN216083054U CN216083054U CN202122638376.3U CN202122638376U CN216083054U CN 216083054 U CN216083054 U CN 216083054U CN 202122638376 U CN202122638376 U CN 202122638376U CN 216083054 U CN216083054 U CN 216083054U
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Abstract
The utility model discloses an automobile battery power supply inlet detector which comprises a shell, wherein an alarm device and an input interface are arranged on the shell, the input interface comprises a live wire connecting terminal and a zero line connecting terminal, a detection circuit board is arranged in the shell, the input interface and the alarm device are both electrically connected with the detection circuit board, the detection circuit board is electrically connected with an automobile battery power supply, and the input interface is electrically connected with an external charging head. The utility model detects whether the external charging head is connected with the input interface according to the regulation or not by the detection circuit board, thereby ensuring that a correct charging signal is provided for the automobile battery; to abnormal connection, remind through alarm device, be convenient for discover the wrong connection and in time cut off the power supply, guarantee to charge stably, prevent to cause the damage to on-vehicle battery.
Description
Technical Field
The utility model relates to the field of automobile charging, in particular to an automobile battery power supply inlet detector.
Background
With the development of science and technology, electric vehicles have gradually entered the society. The electric vehicle is a vehicle which runs by using a vehicle-mounted power supply as power and driving wheels by using a motor. A common vehicle-mounted power source is a vehicle-mounted battery, and an electric motor converts electric energy into mechanical energy to drive wheels and working devices through a transmission or directly.
In the charging of electric automobile, the prior art is mostly that electric automobile is last to set up the mouth that charges, and the external head that charges of rethread is connected with the public mother of the mouth that charges match. The accuracy of the connecting wire is ensured, and the zero-live wire externally connected with the charging head is prevented from being misconnected with the zero-live wire on the charging port through the shape matching of the charging head and the port of the charging port. However, if the zero-live wire is not connected according to the specification in the circuit design of the charging head, the charging head is connected incorrectly, and the charging port connected with the charging head is also connected incorrectly, so that the whole charging zero-live wire is reversely connected, the system is in failure, and the battery can explode if the system is serious.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a car battery power import detector, solves the current problem that the mouth that charges can't detect the wiring condition of charging first connecting wire.
The technical scheme adopted by the utility model for solving the problems is as follows: the utility model provides an automobile battery power import detector, includes the casing, be equipped with alarm device and input interface on the casing, the input interface is including live wire connecting terminal and zero line connecting terminal, be equipped with detection circuitry board in the casing, input interface and alarm device all are connected with detection circuitry board electricity, detection circuitry board is connected with automobile battery power electricity, the input interface is used for being connected with external charging head electricity.
Compared with the prior art, the utility model has the advantages that: whether the external charging head is connected with the input interface according to the regulations or not is detected through the detection circuit board, and a correct charging signal is guaranteed to be provided for the automobile battery; to abnormal connection, remind through alarm device, be convenient for discover the wrong connection and in time cut off the power supply, guarantee to charge stably, prevent to cause the damage to on-vehicle battery.
Preferably, the detection circuit board is provided with a wiring sequence detection module, and the live wire connecting terminal and the zero line connecting terminal are electrically connected with the wiring sequence detection module. Like this, detect external head and the live wire connecting terminal, the zero line connecting terminal's of charging the wiring condition through wiring line order detection module, be convenient for detect external head of charging live wire and zero line whether be connected with live wire connecting terminal and zero line connecting terminal according to the regulation.
Preferably, the connection line sequence detection module includes a photoelectric coupler, the live line connection terminal is electrically connected to an anode of the photoelectric coupler, the zero line connection terminal is electrically connected to a cathode of the photoelectric coupler, an emitter of the photoelectric coupler is grounded, a collector of the photoelectric coupler is connected to a VCC terminal through a pull-up resistor, and a collector of the photoelectric coupler is electrically connected to the detection circuit board. In this way, the actual connection condition of the live wire connecting terminal and the zero wire connecting terminal is detected through the wiring sequence detection module, and if the collector of the photoelectric coupler outputs a low-level signal, the connection is determined to be in accordance with the regulation; if a high level signal is detected, it indicates that the live wire and the zero wire of the charging head are reversely connected and need to be adjusted.
Preferably, the alarm device comprises a live wire LED for detecting the connection condition of the live wire connecting terminal and the external charging head, and a zero wire LED for detecting the connection condition of the zero wire connecting terminal and the external charging head. Therefore, the wiring conditions of the live wire connecting terminal and the zero wire connecting terminal are respectively displayed through the two LEDs, and the conditions of reverse connection, disconnection and the like can be identified.
Preferably, the input interface further includes a ground wire connection terminal, the ground wire connection terminal is electrically connected to the wiring line sequence detection module, the wiring line sequence detection module includes a photoelectric coupler U3 and a photoelectric coupler U4, the live wire connection terminal is electrically connected to the anode of the photoelectric coupler U3 by serially connecting a plurality of resistors and diodes, the cathode of the photoelectric coupler U3 is electrically connected to the ground wire connection terminal, the emitter of the photoelectric coupler U3 is grounded, the collector of the photoelectric coupler U3 is electrically connected to the detection circuit board, and the collector of the photoelectric coupler U3 is electrically connected to the power supply terminal VCC through a resistor R20; zero line connecting terminal is connected through a plurality of resistance of series connection and diode and optoelectronic coupler U4's positive pole electricity, optoelectronic coupler U4's negative pole is connected with earth connection terminal electricity, optoelectronic coupler U4's emitter ground, optoelectronic coupler U4's collecting electrode is connected with the detection circuit board electricity, optoelectronic coupler U4's collecting electrode passes through resistance R21 and power end VCC electricity is connected.
Therefore, under a three-wire system, the zero line, the live line and the grounding wire can be detected simultaneously, the three wires can be accurately connected according to the regulation, and the charging safety and stability are further ensured; whether the three lines are normally connected or not is judged by detecting collector signals of the two photoelectric couplers, and the charging safety and stability are improved.
Preferably, the alarm device comprises a live wire LED for detecting the connection condition of the live wire connecting terminal and the external charging head, a zero wire LED for detecting the connection condition of the zero wire connecting terminal and the external charging head, and a grounding wire LED for detecting the connection condition of the grounding wire connecting terminal and the external charging head. Like this, show the actual connection condition of live wire connecting terminal, zero line connecting terminal and earth connection connecting terminal respectively through three different LED, can discern the circumstances such as the reversal of each connecting terminal and breaking joint respectively, can carry out the analysis to each electric wire, make things convenient for later stage investigation wrong junction, easy access.
Preferably, the detection circuit board is provided with a temperature sensor for detecting the temperature of the live wire connecting terminal. Like this, whether detect live wire connecting terminal's temperature through temperature sensor and exceed the threshold value, if exceed also can report to the police through the alarm signal module and remind, guarantee that whole car battery power import detector can stable work.
Preferably, one end of the shell is provided with a wire clamp device for fixing a power supply lead of the automobile battery. Thus, through the wire clamp device, the automobile battery power supply lead can be fixed and prevented from being disconnected with the live wire connecting terminal, the zero line connecting terminal and the grounding wire connecting terminal.
Preferably, the casing includes a body and a cover, the input interface is disposed on the body, the detection circuit board is disposed in the body, the alarm device is disposed on the body or the cover, and the cover is openably connected to the casing and covers the input interface. Therefore, when the power supply is not used, the input interface is covered and sealed by covering, and water vapor, dust and the like are prevented from entering to cause short circuit of the live wire connecting terminal and the zero line connecting terminal; meanwhile, the alarm device is arranged on the body or the cover, so that the alarm device is convenient to observe during use and is convenient to timely treat bad connection.
Preferably, the alarm device is disposed on the body, and the cover openably covers the alarm device. Like this, open when using and cover, will charge head and input interface connection again, can directly look over alarm information on the body.
Preferably, the warning device is arranged on an outer surface of the cover. Therefore, a larger space can be provided for the body to be used for the input interface, and heat dissipation is facilitated.
Drawings
FIG. 1 is a front view of a vehicle battery inlet detector according to the present invention;
FIG. 2 is a rear view of an automotive battery inlet detector configuration in accordance with the present invention;
FIG. 3 is an exploded view of a three wire configuration of a vehicle battery power inlet detector in accordance with the present invention;
FIG. 4 is a schematic diagram of a three wire system configuration of an automotive battery power inlet detector in accordance with the present invention;
FIG. 5 is an exploded view of a four wire configuration of an automotive battery inlet detector in accordance with the present invention;
FIG. 6 is a schematic diagram of a four-wire system configuration of an automotive battery inlet detector in accordance with the present invention;
FIG. 7 is a circuit diagram of a PCB in-board wiring sequence detection module of the present invention;
FIG. 8 is a circuit diagram of a CPU control module in the PCB board of the present invention;
fig. 9 is a circuit diagram of a pin temperature detecting module in a PCB board according to the present invention.
The reference numbers in the figures illustrate: 1. the casing, 11, the body, 12, cover, 121, first waterproof board, 122, data plate, 13, back lid, 131, joint portion, 132, second waterproof board, 14, the safety cover, 2, alarm device, 3, input interface, 31, live wire connecting terminal, 32, zero line connecting terminal, 33, earth connection terminal, 4, detection circuitry, 5, fastener device, 51, the fixed part, 511, first wire casing, 52, movable part, 521, second wire casing, 522, the card line tooth, 6, mounting, 61, mounting support, 611, logical groove, 612, L type recess.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1-9, the present embodiment relates to an automobile battery power inlet detector, which includes a housing 1, wherein the housing 1 is provided with an alarm device 2 and an input interface 3, the input interface 3 includes a live wire connection terminal 31 and a zero line connection terminal 32, a detection circuit board 4 is provided in the housing 1, the input interface 3 and the alarm device 2 are both electrically connected to the detection circuit board 4, the detection circuit board 4 is electrically connected to an automobile battery power supply, and the input interface 3 is electrically connected to an external charging head.
Whether an external charging head is connected with the input interface 3 according to the regulation or not is detected through the detection circuit board 4, specifically speaking: whether the live wire that detects external head that charges is connected with live wire connecting terminal 31, whether the zero line that detects external head that charges is connected with zero line connecting terminal 32, to unusual connected state, exports through alarm device 2 and reminds, the processing of being convenient for.
In this embodiment, the detection circuit board 4 is provided with a wiring sequence detection module, and the live wire connection terminal 31 and the zero wire connection terminal 32 are electrically connected to the wiring sequence detection module. The wiring condition of the external charging head and the live wire connecting terminal 31 and the zero line connecting terminal 32 is detected through the wiring line sequence detection module, so that whether the live wire and the zero line of the external charging head are connected with the live wire connecting terminal 31 and the zero line connecting terminal 32 according to the regulations or not is conveniently detected.
Wherein, wiring line preface detection module includes photoelectric coupler. When the two-wire system (live wire and zero wire) is used, the live wire connecting terminal 31 is electrically connected with the anode of the photoelectric coupler, the zero wire connecting terminal 32 is electrically connected with the cathode of the photoelectric coupler, the emitting electrode of the photoelectric coupler is grounded, the collecting electrode of the photoelectric coupler is connected with the VCC end through the pull-up resistor, and the collecting electrode of the photoelectric coupler is electrically connected with the detection circuit board 4.
The actual connection condition of the live wire connecting terminal 31 and the zero wire connecting terminal 32 is detected through a wiring sequence detection module, and if the collector of the photoelectric coupler outputs a low-level signal, the connection is determined to be in accordance with the specification; if a high level signal is detected, it indicates that the live wire and the zero wire of the charging head are connected, and the connection is not matched with the live wire connection terminal 31 and the zero wire connection terminal 32 designed on the input interface 3, and the charging head needs to be subjected to line replacement to be used for charging.
The alarm device 2 comprises a live wire LED for detecting the connection condition of the live wire connecting terminal 31 and the external charging head, and a zero wire LED for detecting the connection condition of the zero wire connecting terminal 32 and the external charging head. The wiring conditions of the live wire connecting terminal 31 and the zero wire connecting terminal 32 are respectively displayed through the two LEDs, and the conditions of reverse connection, disconnection and the like can be identified. In the actual use process, the green light of the live wire LED and the zero line LED represents normal connection, the red light represents wrong connection, and the unlit light represents that the connection is not made.
Referring to fig. 3 and 4, as another embodiment of the present application, the input interface 3 is a three-wire system (live wire, neutral wire, and ground wire), and the input interface 3 further includes a ground wire connection terminal 33, and the ground wire connection terminal 33 is electrically connected to the wire sequence detection module.
Referring to fig. 7, the connection line sequence detection module includes a photocoupler U3 and a photocoupler U4.
The live wire connecting terminal 31 is electrically connected with the anode of the photoelectric coupler U3 through a plurality of resistors and diodes which are connected in series, the cathode of the photoelectric coupler U3 is electrically connected with the grounding wire connecting terminal 33, the emitter of the photoelectric coupler U3 is grounded, the collector of the photoelectric coupler U3 is electrically connected with the detection circuit board 4, and the collector of the photoelectric coupler U3 is electrically connected with the power supply terminal VCC through a resistor R20.
The zero line connecting terminal 32 is electrically connected with the anode of a photoelectric coupler U4 through a plurality of resistors and diodes which are connected in series, the cathode of the photoelectric coupler U4 is electrically connected with the grounding wire connecting terminal 33, the emitting electrode of the photoelectric coupler U4 is grounded, the collecting electrode of the photoelectric coupler U4 is electrically connected with the detection circuit board 4, and the collecting electrode of the photoelectric coupler U4 is electrically connected with a power supply end VCC through a resistor R21.
In this embodiment, the voltage of the power supply terminal VCC is + 3.3V. The photocoupler U3 and the photocoupler U4 are both PC817 photocouplers. Thus, the circuit interference is small, and the circuit design is simplified.
Under a three-wire system, a zero line, a live line and a grounding wire can be detected simultaneously, the three wires can be accurately connected according to the specification, and the charging safety and stability are further ensured; whether the three lines are normally connected or not is judged by detecting collector signals of the two photoelectric couplers, and the charging safety and stability are improved.
Wherein, alarm device 2 is including being used for detecting live wire connecting terminal 31 and the external live wire LED who charges the first connection condition, being used for detecting zero line connecting terminal 32 and the external zero line LED who charges the first connection condition of external and being used for detecting earth connection connecting terminal 33 and the external earth wire LED who charges the first connection condition of external.
Through setting up the LED that corresponds respectively to live wire, zero line and earth connection, can carry out the analysis to each electric wire, make things convenient for later stage investigation wrong junction, the easy access. For convenience of observation, a letter "L" is set above the live wire LED on the housing 1 to indicate a live wire connection state, a letter "N" is set above the zero wire LED on the housing 1 to indicate a zero wire connection state, and a letter "G" is set above the ground wire LED on the housing 1 to indicate a ground wire connection state. Meanwhile, the red light is used for indicating normal conduction, the green light is used for indicating error connection, and the non-lighting is used for indicating non-connection.
The specific detection conditions are as follows:
in the above table, if the CPU detection module in the detection circuit board 4 detects the first condition, the output signal is (0,1), and the connection is normal, and the letter display area is fully on green.
If the second condition is detected, the output signal is (1,1), which indicates that the live wire and the ground wire are reversely connected, and the live wire and the ground wire are connected in an interchangeable way.
If the third condition is detected, the output signal is (1,0), and at this time, the zero line and the live line are reversely connected, and the live line and the zero line are connected in an interchanging manner.
In the process, the alarm device 2 can output the alarm device 2 by adopting voice alarm, loudspeaker alarm or remote communication alarm and the like besides the LED.
In this embodiment, the live wire connection terminal 31, the neutral wire connection terminal 32, and the ground wire connection terminal 33 may be in a plug structure or a socket structure, and are conveniently connected to the charging head in a mating manner.
In the in-service use process, because of the current is great on the charging wire, the condition of generating heat can appear on the automobile battery power supply import detector, especially live wire connecting terminal 31, need carry out certain restriction to this temperature range, prevents that high temperature from causing whole automobile battery power supply import detector trouble, also can effectively detect the heavy current condition. Therefore, in the present embodiment, the detection circuit board 4 is provided with a temperature sensor for detecting the temperature of the live connection terminal 31. The circuit connections of the temperature sensor are shown in fig. 6.
Whether the temperature of detecting live wire connecting terminal 31 through temperature sensor surpasss the threshold value, also can report to the police through alarm device 2 if surpassing and remind, guarantee that whole car battery power import detector can stable work. Like line sequence detection, the alarm device 2 can also be a voice alarm, a loudspeaker alarm, an LED module alarm or a remote communication alarm and the like.
In this embodiment, an LED module is used for alarming. Specifically, the alarm device 2 includes a temperature warning light for displaying whether the temperature of the live wire connecting end 31 is normal. To the temperature abnormal state of live wire connecting terminal 31, can remind through the temperature warning light, avoid the excessive heat damage of charging port whole car battery power import detector.
Specifically, the temperature warning lamp can be different from the arrangement of a live wire LED, a zero line LED and a grounding wire LED, and can also be combined with the live wire LED to share one. Live wire LED indicates normal switch-on through the green light, and the red light indicates wrong connection, and not lighting up indicates not switching on, then can indicate the temperature anomaly by setting up the red light scintillation. Of course, the live line LED may also adopt a tricolor color lamp to display various states.
In the in-service use in-process, sometimes the car battery power needs many live wires to supply power, and line sequence detection at this time is also similar with above-mentioned description, detects other live wires through addding other photoelectric coupler again, and the photoelectric coupler that adds is connected with live wire and the zero line that comes out more, and the collecting electrode signal of rethread photoelectric coupler detects, belongs to the same kind and creates. For example, as shown in fig. 5 and 6, two power lines are used to provide power.
The conduction determination for the live wire connection terminal 31, the neutral wire connection terminal 32, and the ground wire connection terminal 33 and the external charging head is mainly performed on the detection circuit board 4. The detection circuit board 4 is internally provided with a power supply module, a CPU control module, a wiring line sequence detection module and a pin temperature detection module.
The power supply module mainly used provides the power supply of each module on whole detection circuit board 4, and the power supply module is connected with the zero live wire of car battery power, converts high-voltage alternating current into low-voltage direct current through inside voltage stabilization chip, outputs a power supply, supplies power for subsequent CPU control module, wiring line order detection module and participate in temperature detection module, and this power supply is the power end VCC, and in this embodiment, the power end VCC is + 3.3V.
Referring to fig. 8, the CPU control module is configured to process all data and drive the live LED, the zero LED, and the ground LED of the alarm device 2 to display statuses.
Referring to fig. 9, the pin temperature detection module mainly detects the temperature of the live wire connection terminal 31, detects the temperature through the temperature sensitive resistor, and inputs a signal to the CPU control module for processing.
Referring to fig. 1-6, in this embodiment, the housing 1 is provided at one end with a wire clamp device 5 for securing a power supply lead of a battery of an automobile. Thus, the automobile battery power lead can be fixed by the clip device 5, and can be prevented from being disconnected from the live wire connection terminal 31, the neutral wire connection terminal 32, and the ground wire connection terminal 33.
The wire clamp device 5 includes a fixing portion 51 and a movable portion 52, the fixing portion 51 is connected to one end of the housing 1, the fixing portion 51 is provided with a first wire slot 511, the movable portion 52 is detachably connected to the fixing portion 51, and the movable portion 52 is provided with a second wire slot 521 matched with the first wire slot 511. The power lead of the automobile battery can be clamped between the first wire slot 511 and the second wire slot 521, so that the power lead can be conveniently fixed.
Further, the movable portion 52 is provided with a plurality of wire-clamping teeth 522 on a groove wall of the second wire groove 521, each wire-clamping tooth 522 extends in the axial direction of the second wire groove 521, and the plurality of wire-clamping teeth 522 are circumferentially distributed along the second wire groove 521. The wire clamping teeth 522 can further fix the power supply lead of the automobile battery to prevent sliding.
In this embodiment, the housing 1 includes a body 11 and a cover 12, the input interface 3 is disposed on the body 11, the detection circuit board 4 is disposed in the body 11, the alarm device 2 is disposed on the body 11 or the cover 12, and the cover 12 is openably connected to the housing 11 and covers the input interface 3. When the power supply is not used, the input interface 3 is covered and sealed by the cover 12, so that water vapor, dust and the like are prevented from entering, and the live wire connecting terminal 31 and the zero wire connecting terminal 32 are prevented from being short-circuited; meanwhile, the alarm device 2 is arranged on the body 11 or the cover 12, so that observation is facilitated during use, and poor connection can be conveniently and timely processed.
As one of the embodiments of the present application, the alarm device 2 is provided on the body 11, and the cover 12 openably covers the alarm device 2. Open when using and cover 12, be connected external head that charges with input interface 3 again, can directly look over alarm information on body 11.
As another embodiment of the present application, the alarm device 2 is provided on the outer surface of the cover 12. It is possible to provide the body 11 with a larger space for the input interface 3, facilitating heat dissipation.
Wherein, the body 11 is provided with a connecting port, the input interface 3 is arranged in the connecting port, and the inner surface of the cover 12 is provided with a first waterproof board 121. When not using, cover 12 lid and close on body 11, first waterproof board 121 lid closes on the connector this moment, carries out a sealed waterproof effect to the connector, prevents that steam from entering into inside the body 11, causes the influence to live wire connecting terminal 31, zero line connecting terminal 32 and earth connection connecting terminal 33.
Furthermore, a data plate 122 is arranged on the outer surface of the cover 12, the data plate 122 can be separated from the alarm device 2 which is also arranged on the outer surface of the cover 12, and the data plate 122 can also be arranged in a hollow manner, so that the alarm device 2 is arranged at the hollow position. The nameplate 122 is mainly used for describing the type of the automobile battery power supply inlet detector, and is convenient to mark; the corresponding logo can also be written.
The casing 1 further comprises a rear cover 13, a groove for mounting the detection circuit board 4 is formed in the rear cover 13, and the detection circuit board 4 is arranged between the rear cover 13 and the body 11. The rear cover 13 mainly fixes the detection circuit board 4, and the automobile battery power supply lead passes through the rear cover and is connected with the detection circuit board 4.
The rear cover 13 is provided with a plurality of clamping portions 131 for clamping a live wire, a zero wire and a grounding wire in a power supply lead of the automobile battery. The clamping portion 131 is combined with the wire clamp device 5, so that stable connection of a power supply lead of an automobile battery and the live wire connecting terminal 31, the zero wire connecting terminal 32 and the grounding wire connecting terminal 33 is guaranteed, and poor contact caused by looseness is prevented.
For convenience of arrangement, the fixing portion 51 of the wire clamping device 5 can be directly arranged on the protective cover 14, so that the arrangement of redundant structures is reduced.
Be equipped with detection circuitry board 4 in the back lid 13, the safety cover 14 cover is established at the back lid rear, in order to prevent that external steam dust etc. from body 11 side position entering back lid 13 rear, and then from the rear position entering back lid 13 in, sets up second waterproof board 132 at back lid 13 rear. The second waterproof sheet 132 also enables a waterproof arrangement of the connection between the protective cover 14 and the rear cover 13, ensuring that water vapor or the like does not enter the position between the rear cover 13 and the protective cover 14.
If the two-wire system (live wire and neutral wire) housing 1 is used, a fixing member 6 for fixing the live wire connecting terminal 31 and the neutral wire connecting terminal 32 is provided therein.
Referring to fig. 3 and 4, if a three-wire system (live wire, neutral wire, and ground wire) is used, the live wire connection terminal 31, the neutral wire connection terminal 32, and the ground wire connection terminal 33 may be provided on the fixing member 6.
Referring to fig. 5 and 6, if a four-wire system (fire wire 1, fire wire 2, neutral wire, and ground wire) is used, the fire wire 1 connection terminal, the fire wire 2 connection terminal, and the neutral wire connection terminal 32 may be provided on the fixing member 6, and the ground wire connection terminal 33 may be provided between the fixing member 6 and the body 11. When setting up to many live wires, set up the earth connection in the side position, guarantee that mounting 6 has sufficient space to install live wire connecting terminal 31 and zero line connecting terminal.
In the four-wire system, a through groove 611 is formed between the housing 1 and the fixing member 6, and the ground wire connection terminal 33 is embedded in the through groove 611. Through embedded setting, the space that increases mounting 6 accounts for the ratio, can make the interval increase of two live wire connecting terminal 31 and zero line connecting terminal 32, the heat dissipation of being convenient for. Meanwhile, the ground wire connecting terminal 33 is arranged on the side, so that the ground wire connecting terminal is convenient to distinguish from a zero-fire wire, and wrong connection is prevented.
Further, a fixing member support 61 is disposed between the housing 1 and the fixing member 6, and the through groove 611 is disposed on an inner side wall of the fixing member support 61 on a side close to the fixing member 6. The fixing piece 6 is fixed by the additionally arranged fixing piece bracket 61, and the mounting and the dismounting are convenient.
The grounding wire connecting terminal 33 is arranged on the side, the L-shaped groove 612 is arranged on the fixing piece support 61 on the side of the connecting port, when the external charging head is connected with the external charging head in the later period, the external charging head is firstly pressed into the connecting port, then the external charging head rotates to the corresponding position in the L-shaped groove 612, and then the external charging head is prevented from being separated from the connecting port with the live wire connecting terminal 31 and the zero wire connecting terminal 32. Of course, if the fixing member holder 61 is not provided, the L-shaped groove 612 may be directly provided on the inner sidewall of the body 11.
As another embodiment of the present application, a ground interface fixing block may also be disposed between the housing 1 and the fixing member 6 by protruding, and the through slot 611 is disposed on the ground interface fixing block. At this time, the external charging head is directly inserted into the connection port and electrically connected to the live wire connection terminal 31, the neutral wire connection terminal 32, and the ground wire connection terminal 33. And then the connection is fixed by a common fixing mode, so that the connection stability is ensured.
The utility model has the beneficial effects that: whether the external charging head is connected with the input interface 3 according to the regulations is detected through the detection circuit board 4, and a correct charging signal is provided for an automobile battery; to abnormal connection, remind through alarm device 2, be convenient for discover the wrong connection in time cut off the power supply, guarantee to charge stably, prevent to cause the damage to on-vehicle battery.
While the foregoing description shows and describes several preferred embodiments of the utility model, it is to be understood, as noted above, that the utility model is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the utility model as defined by the appended claims.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (11)
1. The utility model provides an automobile battery power import detector which characterized in that: including casing (1), be equipped with alarm device (2) and input interface (3) on casing (1), input interface (3) are including live wire connecting terminal (31) and zero line connecting terminal (32), be equipped with detection circuit board (4) in casing (1), input interface (3) and alarm device (2) all are connected with detection circuit board (4) electricity, detection circuit board (4) are connected with car battery power electricity, input interface (3) are used for being connected with external charging head electricity.
2. The automotive battery power inlet detector of claim 1, wherein: the detection circuit board (4) is provided with a wiring line sequence detection module, and the live wire connecting terminal (31) and the zero line connecting terminal (32) are electrically connected with the wiring line sequence detection module.
3. The automotive battery power inlet detector of claim 2, wherein: the wiring line sequence detection module comprises a photoelectric coupler, a live wire connecting terminal (31) is electrically connected with the anode of the photoelectric coupler, a zero line connecting terminal (32) is electrically connected with the cathode of the photoelectric coupler, the emitting electrode of the photoelectric coupler is grounded, the collecting electrode of the photoelectric coupler is connected with the VCC end through a pull-up resistor, and the collecting electrode of the photoelectric coupler is electrically connected with a detection circuit board (4).
4. The automotive battery power inlet detector of claim 3, wherein: alarm device (2) are including being used for detecting live wire connecting terminal (31) and the external live wire LED who charges the first condition of being connected to and be used for detecting zero line connecting terminal (32) and the external zero line LED who charges the first condition of being connected.
5. The automotive battery power inlet detector of claim 2, wherein: the input interface (3) further comprises a grounding wire connecting terminal (33), the grounding wire connecting terminal (33) is electrically connected with a wiring sequence detection module, the wiring sequence detection module comprises a photoelectric coupler U3 and a photoelectric coupler U4,
the live wire connecting terminal (31) is electrically connected with the anode of a photoelectric coupler U3 through a plurality of resistors and diodes which are connected in series, the cathode of the photoelectric coupler U3 is electrically connected with the grounding wire connecting terminal (33), the emitter of the photoelectric coupler U3 is grounded, the collector of the photoelectric coupler U3 is electrically connected with the detection circuit board (4), and the collector of the photoelectric coupler U3 is electrically connected with a power supply end VCC through a resistor R20;
zero line connecting terminal (32) are connected through a plurality of resistance of establishing ties and diode and optoelectronic coupler U4's positive pole electricity, optoelectronic coupler U4's negative pole is connected with earth connection terminal (33) electricity, optoelectronic coupler U4's emitter ground, optoelectronic coupler U4's collecting electrode is connected with detection circuit board (4) electricity, optoelectronic coupler U4's collecting electrode passes through resistance R21 and VCC electricity is connected.
6. The automotive battery power inlet detector of claim 5, wherein: alarm device (2) including be used for detecting live wire connecting terminal (31) and external live wire LED who charges the first condition of being connected, be used for detecting zero line connecting terminal (32) and the external zero line LED who charges the first condition of being connected and be used for detecting earth connection connecting terminal (33) and the external earth connection LED who charges the first condition of being connected.
7. The automotive battery power inlet detector as claimed in any one of claims 1 to 6, wherein: the detection circuit board (4) is provided with a temperature sensor for detecting the temperature of the live wire connecting terminal (31).
8. The automotive battery power inlet detector as claimed in any one of claims 1 to 6, wherein: one end of the shell (1) is provided with a wire clamp device (5) for fixing a power supply lead of an automobile battery.
9. The automotive battery power inlet detector as claimed in any one of claims 1 to 6, wherein: casing (1) includes body (11) and covers (12), input interface (3) set up on body (11), detection circuitry board (4) set up in body (11), alarm device (2) set up in body (11) or cover (12), cover (12) and connect on body (11) with opening to cover input interface (3).
10. The automotive battery power inlet detector of claim 9, wherein: the alarm device (2) is arranged on the body (11), and the cover (12) can openably cover the alarm device (2).
11. The automotive battery power inlet detector of claim 9, wherein: the alarm device (2) is arranged on the outer surface of the cover (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122638376.3U CN216083054U (en) | 2021-10-28 | 2021-10-28 | Automobile battery power supply inlet detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122638376.3U CN216083054U (en) | 2021-10-28 | 2021-10-28 | Automobile battery power supply inlet detector |
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| Publication Number | Publication Date |
|---|---|
| CN216083054U true CN216083054U (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122638376.3U Active CN216083054U (en) | 2021-10-28 | 2021-10-28 | Automobile battery power supply inlet detector |
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| Country | Link |
|---|---|
| CN (1) | CN216083054U (en) |
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2021
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