CN204243844U - A kind of electric air-conditioning power-supply system - Google Patents
A kind of electric air-conditioning power-supply system Download PDFInfo
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- CN204243844U CN204243844U CN201420823927.0U CN201420823927U CN204243844U CN 204243844 U CN204243844 U CN 204243844U CN 201420823927 U CN201420823927 U CN 201420823927U CN 204243844 U CN204243844 U CN 204243844U
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Abstract
The utility model discloses a kind of electric air-conditioning power-supply system, comprise generator, original-pack storage battery, controller, voltage sampling circuit and the additional power circuitry in parallel with original-pack storage battery, the positive pole of original-pack storage battery is connected with the power input of the generating output of generator and air-conditioning system, additional power circuitry comprise be connected in series add holding storage battery and gate-controlled switch, voltage sampling circuit is in parallel with original-pack storage battery; The control part of gate-controlled switch is connected with switch controlling signal input, to receive for controlling gate-controlled switch state of switch control signal through switch controlling signal input.The utility model, by adding the basic running time that holding storage battery can ensure air-conditioning system, is connected by making to add holding storage battery can regulate power configuration as required easily with gate-controlled switch.
Description
Technical field
The utility model relates to on-board air conditioner technical field, particularly relates to a kind of electric air-conditioning power-supply system.
Background technology
Traditional on-board air conditioner realizes refrigeration by engine and heat, therefore, its cooling or heating effect can be subject to the impact of engine speed, especially when vehicle idling, in order to open air conditioner refrigerating, just necessary ato unit, this will certainly cause certain oil consumption, if occupant now has a rest in car, even likely cause anthracemia, health risk.And although electric air-conditioning can break away from the constraint of engine, promote refrigerating efficiency, the refrigeration performance of air-conditioning system, and improve car load power performance, but because electric air-conditioning needs by storage battery power supply, therefore, if open air-conditioning probably cause discharged or defective battery when vehicle idling, and then affect the use of vehicle launch and other electrical appliances, to this, if vehicle set has the measure preventing discharged or defective battery, then air-conditioning system is difficult to obtain the basic running time meeting occupant's instructions for use when vehicle idling.
Utility model content
The object of the utility model embodiment is to provide a kind of electric air-conditioning power-supply system being easy to the basic running time ensureing electric air-conditioning system.
To achieve these goals, the technical solution adopted in the utility model is: a kind of electric air-conditioning power-supply system, comprise generator and original-pack storage battery, the power input of the positive pole of described original-pack storage battery and the generating output of described generator and air-conditioning system is electrically connected; Described electric air-conditioning power-supply system also comprises voltage sampling circuit, and the additional power circuitry be connected in parallel with described original-pack storage battery; Described additional power circuitry comprise be connected in series add holding storage battery and gate-controlled switch, described in add the nominal voltage of holding storage battery identical with the nominal voltage of described original-pack storage battery; Described voltage sampling circuit is in parallel with described original-pack storage battery, to export the voltage signal of the described original-pack storage battery both end voltage of reflection through the voltage output end of described voltage sampling circuit; The control part of described gate-controlled switch is connected with the switch controlling signal input of described electric air-conditioning power-supply system, to receive for controlling described gate-controlled switch state of switch control signal through described switch controlling signal input.
Preferably, described additional power circuitry also comprises the indicator light be connected in series with described gate-controlled switch.
Preferably, described gate-controlled switch is the contact of contactor, and the control part of described gate-controlled switch is the coil of described contactor, and described coil is connected between described switch controlling signal input and bonding.
Preferably, described voltage sampling circuit comprises each divider resistance between positive pole and negative pole being connected in series in described original-pack storage battery, and the dividing point between adjacent divider resistance forms described voltage output end through filter circuit.
Preferably, described filter circuit is π type RC filter circuit.
Preferably, the power input of described air-conditioning system comprises high voltage source input for powering for compressor and for the reference power supply input for other assembly power supplies of air-conditioning system; Described electric air-conditioning power-supply system also comprises DC voltage booster circuit, positive pole one branch road of described original-pack storage battery and the reference power supply input of described air-conditioning system are electrically connected, and another branch road is electrically connected by the high voltage source input of described DC voltage booster circuit and described air-conditioning system.
Preferably, described DC voltage booster circuit is push-pull type DC voltage booster circuit.
The beneficial effects of the utility model are; the utility model electric air-conditioning power-supply system identical with original-pack nominal battery voltage adds holding storage battery by increasing; effectively can ensure the basic running time of air-conditioning system during generator is in stopped status; by arranging and add the gate-controlled switch that holding storage battery is connected in series; the power configuration of electric air-conditioning power-supply system can be changed as required; the impact of holding storage battery on original-pack storage battery is added to reduce; generator such as can be made to be preferably original-pack charge in batteries, to prevent original-pack discharged or defective battery.
Accompanying drawing explanation
Fig. 1 shows a kind of frame principle figure implementing structure according to the utility model electric air-conditioning power-supply system;
Fig. 2 shows the frame principle figure implementing structure according to the another kind of the utility model electric air-conditioning power-supply system;
Fig. 3 shows a kind of circuit theory diagrams implementing structure of voltage sampling circuit in Fig. 1 and Fig. 2.
Description of reference numerals:
1: controller; 2: voltage sampling circuit;
3: air-conditioning system; 4: DC voltage booster circuit;
B1: original-pack storage battery; B2: add holding storage battery;
K: gate-controlled switch; L: indicator light;
R1: the first divider resistance; R2: the second divider resistance;
C1: the first filter capacitor; C2: the second filter capacitor;
R3: filter resistance; D: protection device;
B+: the positive pole of original-pack storage battery; Vout-voltage output end;
Vcc: reference power source; M-generator.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
The utility model, in order to solve the technical problem that cannot ensure the basic running time of electric air-conditioning system during generator is in stopped status existed at present, provides a kind of electric air-conditioning power-supply system ensureing electric air-conditioning system reliability service.As shown in Figure 1, this electric air-conditioning power-supply system comprises generator M and original-pack storage battery B1, the positive pole of this original-pack storage battery B1 and the generating output of generator M are electrically connected, to make generator M when the output voltage of the voltage at original-pack storage battery B1 two ends lower than generator M, by generating electricity, output is that original-pack storage battery B1 charges, so the output voltage of this generator M should be suitable with the charge threshold of this original-pack storage battery B1, for the original-pack battery-driven vehicle that employing nominal voltage is 24V, this charge threshold is generally 28V; The power input of this original-pack storage battery B1 and air-conditioning system 3 is electrically connected, and thinks that air-conditioning system 3 provides working power.In addition, electric air-conditioning power-supply system of the present utility model also comprises voltage sampling circuit 2, the additional power circuitry be connected in parallel with original-pack storage battery B1, switch controlling signal input (not shown), this additional power circuitry comprise add holding storage battery B2 and with the gate-controlled switch K adding holding storage battery B2 and be connected in series, this adds holding storage battery B2 is at least that nominal voltage is identical with original-pack storage battery B1, such as the nominal voltage of original-pack storage battery B1 is 24V, then this nominal voltage adding holding storage battery B2 also should be 24V, preferably capacity is also identical with original-pack storage battery B1, particularly indices parameter and the identical storage battery of original-pack storage battery B1, to eliminate original-pack storage battery B1 as far as possible and to add influencing each other between holding storage battery B2, this voltage sampling circuit 2 is connected in parallel with original-pack storage battery B1, to detect the voltage at original-pack storage battery B1 two ends, the control part of this gate-controlled switch K is connected with switch controlling signal input, with receive through this switch controlling signal input that controller 1 exports for controlling gate-controlled switch K state of switch control signal, and then controller 1 can be made to adjust the power configuration of the utility model electric air-conditioning power-supply system according to presetting method.
The utility model electric air-conditioning power-supply system makes original-pack storage battery B1 by adopting during generator outage state and adds the dual power source structure that holding storage battery B2 is connected in parallel, and effectively can ensure the basic running time of air-conditioning system during generator is in stopped status.
In order to the power configuration making controller 1 can adjust the utility model electric air-conditioning power-supply system according to the state of air-conditioning system 3, this controller 1 communicates to connect with air-conditioning system 3, to make air-conditioning system 3 after the unlatching airconditioning control signal receiving user's triggering, the air-conditioning start signal that reflection air-conditioning system is in running status is exported to controller 1, and make air-conditioning system 3 after the closedown airconditioning control signal receiving user's triggering, export to controller 1 the air-conditioning shutdown signal that reflection air-conditioning system is in closed condition.
On the basis of electric air-conditioning power-supply system of the present utility model, the adoptable control method of controller 1 is: this controller 1 is when generator M is in stopped status, if receive the air-conditioning start signal that air-conditioning system 3 exports, then control gate-controlled switch K to close, to make, original-pack storage battery B1 is in parallel with adding holding storage battery B2 to be formed duplicate supply for air-conditioning system 3 and powers, effectively to ensure the basic running time of air-conditioning system 3 during generator M is in stopped status, and after the voltage drop at original-pack storage battery B1 two ends to the minimum voltage of startup vehicle being detected, export to air-conditioning system 3 and close airconditioning control signal, make air-conditioning system 3 out of service, cannot normally start because of original-pack storage battery B1 power shortage to prevent vehicle.Simultaneously; this controller 1 also can when generator M be in stopped status; after voltage drop to the minimum voltage of startup vehicle being detected; control gate-controlled switch K to disconnect; to eliminate original-pack storage battery B1 further and to add influencing each other between holding storage battery B2; for the battery-driven vehicle that employing nominal voltage is 24V, the minimum voltage of this startup vehicle is generally 21V.
As can be seen here, on the basis of the utility model electric air-conditioning power-supply system, not only can effectively prevent original-pack discharged or defective battery, effectively can also ensure the basic running time of air-conditioning system during generator is in stopped status.
In order to avoid affecting the charging rate of original-pack storage battery B1 because adding holding storage battery B2, on the basis of the utility model electric air-conditioning control system, this controller 1 can when generator be in generating state, judge whether to detect that switch closes event, in this way, then to switch controlling signal input output switch closure signal, control gate-controlled switch K and close; As no, then to switch controlling signal input output switch cut-off signal, control gate-controlled switch K and disconnect; And this switch closes event comprises: the voltage at original-pack storage battery B1 two ends reaches the charge threshold of original-pack storage battery.This illustrates that generator M is only when the voltage at original-pack storage battery B1 two ends reaches charge threshold, just can be charged for adding holding storage battery B2 by unnecessary energy, make original-pack storage battery B1 be in most high charge priority, and then ensure the normal use of the various electrical appliance of vehicle.
During generator is in generating state, can be that original-pack storage battery B1 charges during output voltage lower than generator of voltage at original-pack storage battery B1 two ends, therefore, in that case, can adopt independent is the scheme that air-conditioning system 3 is powered by original-pack storage battery B1.But, in order to improve the job stability of air-conditioning system 3, also can be in that case, still adopt by original-pack storage battery B1 and to add the structure that holding storage battery B2 parallel connection forms duplicate supply be that air-conditioning system 3 is powered, therefore, above-mentioned switch closes event and can also comprise: receive the air-conditioning start signal that described air-conditioning system exports.Accordingly, controller 1 is when detecting that the voltage at original-pack storage battery B1 two ends reaches the charge threshold of original-pack storage battery, or when receiving the air-conditioning start signal that described air-conditioning system exports, to switch controlling signal input output switch closure signal, controlling gate-controlled switch K and closing.
In order to reduce original-pack storage battery B1 further and add influencing each other between holding storage battery B2; controller 1 can when generator M be in stopped status; if detect, the voltage drop at original-pack storage battery B1 two ends is to the minimum voltage starting vehicle, controls gate-controlled switch K and disconnects.Controller 1 is particularly in stopped status at generator M, and when receiving air-conditioning start signal, if detect, the voltage drop at original-pack storage battery B1 two ends is to the minimum voltage starting vehicle, controls gate-controlled switch K and disconnects.
In order to the service condition making driver clearly can add holding storage battery B2, and then judge whether electric air-conditioning power-supply system of the present utility model normally works, above-mentioned additional power circuitry also can comprise the indicator light L be connected in series with gate-controlled switch K.Like this, controller 1 control gate-controlled switch K closed make to add holding storage battery B2 is in parallel with original-pack storage battery B1 forms duplicate supply time, this indicator light L should light, if this indicator light L does not normally light, then illustrate that electric air-conditioning power-supply system of the present utility model may break down, need to overhaul.
Above-mentioned gate-controlled switch K can be the contact of contactor, and the control part of gate-controlled switch K is the coil of contactor, this coil is connected between switch controlling signal input and bonding, and therefore, controller 1 can be controlled the closed of contact by the coil of this contactor and be disconnected.Because gate-controlled switch K all should be in off-state within the most of the time, therefore, in order to reduce the loss of power, this contact is in particular normally opened contact.
Above-mentioned gate-controlled switch K also can for the switching tube being such as triode, field effect transistor, and wherein, the control part of triode is base stage, and the control part of field effect transistor is grid, and switch controlling signal input is connected with the control part of switching tube by current-limiting resistance.
As shown in Figure 3, above-mentioned voltage sampling circuit 2 can comprise the positive pole and each divider resistance between negative pole (negative pole of original-pack storage battery B1 is connected with bonding) that are connected in series in original-pack storage battery B1, such as comprise the first divider resistance R1 and the second divider resistance R2, dividing point between adjacent divider resistance is through filter circuit coating-forming voltage output end vo ut, this voltage sampling circuit 2 is connected with the voltage detecting port of controller 1 by voltage output end Vout, namely filter circuit is connected at the voltage detecting port of controller 1 with between bonding, the voltage at original-pack storage battery B1 two ends is detected by this voltage sampling circuit to make controller 1, effectively can improve the stability of voltage detecting.
In order to can the effective ripple of voltage signal that exports through above-mentioned dividing point of elimination, this filter circuit such as can adopt π type RC filter circuit as shown in Figure 3, this π type RC filter circuit specifically comprises the first filter capacitor C1 be connected between above-mentioned dividing point and bonding, be connected to the second filter capacitor C2 between above-mentioned voltage output end Vout and bonding, and be connected to the filter resistance R3 between the first filter capacitor C1 and the second filter capacitor C2.This filter circuit also can adopt more piece π type RC filter circuit, or the RC filter circuit of other structures.
In order to can the AD sample circuit of available protecting controller 1 inside, a protection device D can be connected at voltage output end Vout, this protection device is such as BAV99, the common end being specially BAV99 is connected with voltage output end Vout, all the other positive terminals are connected with bonding, a negative pole end is connected with reference power source Vcc, like this, part higher than reference power source Vcc in the voltage signal that voltage output end Vout exports can be released to reference power source, part lower than ground wire then can be released to ground wire, and then the voltage detecting port of clamper via controller 1 can input to the voltage of AD sample circuit, prevent AD sample circuit from damaging.
The ability of compressor is driven in order to improve the utility model electric air-conditioning power-supply system, as shown in Figure 2, this electric air-conditioning power-supply system can also comprise DC voltage booster circuit 4, positive pole one branch road of original-pack storage battery B1 and the reference power supply input of air-conditioning system 3 are electrically connected, another branch road is electrically connected by the high voltage source input of DC voltage booster circuit 4 with air-conditioning system, wherein, this air-conditioning system 3 is by driving compressor operating through the high-voltage DC power supply of high voltage source input access, and by other component operation of direct voltage drive air-conditioning system through the access of reference power supply input.The step-up ratio of this DC voltage booster circuit 4 can need design according to compressor, this DC voltage booster circuit 4 is such as designed to export 330V DC power supply to high voltage source input, 330V DC power supply is supplied to compressor drive circuit by this high voltage source input, and then 330V DC power supply is converted to the AC power needed for compressor by compressor drive circuit.This DC voltage booster circuit 4 such as can adopt push-pull type DC voltage booster circuit, also can adopt monofocal, semibridge system, full-bridge type DC voltage booster circuit.In addition, also this DC voltage booster circuit 4 can be designed to the part belonging to air-conditioning system, if design of air conditioning has this partial circuit, then the utility model electric air-conditioning power-supply system can be that air-conditioning system is powered by unified power input.
Structure of the present utility model, feature and action effect is described in detail above according to graphic shown embodiment; the foregoing is only preferred embodiment of the present utility model; but the utility model does not limit practical range with shown in drawing; every change done according to conception of the present utility model; or be revised as the Equivalent embodiments of equivalent variations; do not exceed yet specification with diagram contain spiritual time, all should in protection range of the present utility model.
Claims (7)
1. an electric air-conditioning power-supply system, comprises generator and original-pack storage battery, and the power input of the positive pole of described original-pack storage battery and the generating output of described generator and air-conditioning system is electrically connected; It is characterized in that, described electric air-conditioning power-supply system also comprises voltage sampling circuit, and the additional power circuitry be connected in parallel with described original-pack storage battery; Described additional power circuitry comprise be connected in series add holding storage battery and gate-controlled switch, described in add the nominal voltage of holding storage battery identical with the nominal voltage of described original-pack storage battery; Described voltage sampling circuit is in parallel with described original-pack storage battery, to export the voltage signal of the described original-pack storage battery both end voltage of reflection through the voltage output end of described voltage sampling circuit; The control part of described gate-controlled switch is connected with the switch controlling signal input of described electric air-conditioning power-supply system, to receive for controlling described gate-controlled switch state of switch control signal through described switch controlling signal input.
2. electric air-conditioning power-supply system according to claim 1, is characterized in that, described additional power circuitry also comprises the indicator light be connected in series with described gate-controlled switch.
3. electric air-conditioning power-supply system according to claim 1, it is characterized in that, described gate-controlled switch is the contact of contactor, and the control part of described gate-controlled switch is the coil of described contactor, and described coil is connected between described switch controlling signal input and bonding.
4. electric air-conditioning power-supply system according to claim 1, it is characterized in that, described voltage sampling circuit comprises each divider resistance between positive pole and negative pole being connected in series in described original-pack storage battery, and the dividing point between adjacent divider resistance forms described voltage output end through filter circuit.
5. electric air-conditioning power-supply system according to claim 4, is characterized in that, described filter circuit is π type RC filter circuit.
6. electric air-conditioning power-supply system according to any one of claim 1 to 5, it is characterized in that, the power input of described air-conditioning system comprises high voltage source input for powering for compressor and for the reference power supply input for other assembly power supplies of air-conditioning system; Described electric air-conditioning power-supply system also comprises DC voltage booster circuit, positive pole one branch road of described original-pack storage battery and the reference power supply input of described air-conditioning system are electrically connected, and another branch road is electrically connected by the high voltage source input of described DC voltage booster circuit and described air-conditioning system.
7. electric air-conditioning power-supply system according to claim 6, is characterized in that, described DC voltage booster circuit is push-pull type DC voltage booster circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823927.0U CN204243844U (en) | 2014-12-22 | 2014-12-22 | A kind of electric air-conditioning power-supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823927.0U CN204243844U (en) | 2014-12-22 | 2014-12-22 | A kind of electric air-conditioning power-supply system |
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| Publication Number | Publication Date |
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| CN204243844U true CN204243844U (en) | 2015-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420823927.0U Expired - Fee Related CN204243844U (en) | 2014-12-22 | 2014-12-22 | A kind of electric air-conditioning power-supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949302A (en) * | 2015-04-22 | 2015-09-30 | 珠海格力电器股份有限公司 | Air conditioner |
-
2014
- 2014-12-22 CN CN201420823927.0U patent/CN204243844U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949302A (en) * | 2015-04-22 | 2015-09-30 | 珠海格力电器股份有限公司 | Air conditioner |
| CN104949302B (en) * | 2015-04-22 | 2018-01-19 | 珠海格力电器股份有限公司 | Air-conditioning |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: Anhui Jianghuai Automobile Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20191222 |