CN205225914U - Hydrovalve and electric power operation car air conditioner hydraulic system - Google Patents
Hydrovalve and electric power operation car air conditioner hydraulic system Download PDFInfo
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- CN205225914U CN205225914U CN201520790077.3U CN201520790077U CN205225914U CN 205225914 U CN205225914 U CN 205225914U CN 201520790077 U CN201520790077 U CN 201520790077U CN 205225914 U CN205225914 U CN 205225914U
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Abstract
The utility model discloses a hydrovalve and electric power operation car air conditioner hydraulic system, the hydrovalve is by the switching -over valve, an unidirectional valve, overflow valve and valve body are constituteed, the oil inlet of valve body communicates with each other with the oil inlet of switching -over valve, the first hydraulic fluid port of valve body is linked together with the first oil -out of switching -over valve, the second hydraulic fluid port of valve body is linked together with the oil inlet of check valve, the oil inlet of overflow valve is linked together with the oil inlet of switching -over valve, the third hydraulic fluid port of valve body communicates with the oil -out of overflow valve and the oil -out of check valve each other. The utility model discloses can effectively prevent the reversal of air conditioner hydraulic motor, avoid damaging the compressor because of the reversal of air conditioner hydraulic motor, can effectively prevent maybe can not build troubles such as pressure because of the hydraulic system insufficient pressure who lets out the production in the air conditioner hydraulic motor.
Description
Technical field
The utility model relates to Hydraulic Field, particularly a kind of hydrovalve and electric power operation car air-conditioning hydraulic system.
Background technique
At present, the upper air conditioner of the special equipment such as electric power operation car is generally by being installed on the motor of getting on the bus or air-conditioning fluid motor-driven aircondition realizes refrigeration.Such as: patent CN98226796 discloses a kind of upper air conditioner, the air-conditioning fluid motor-driven aircondition by getting on the bus freezes; Patent CN02157292 provides the cold and hot air conditioner of a kind of craneman's house without self-contained engine, by being installed on the air-conditioning fluid motor-driven refrigerant compression mechanism cold of getting on the bus, or driving and heats oil hydraulic pump and heat; Patent CN02111266 provides a kind of motor-driven heating and cooling air conditioner system of getting on the bus, and adopts direct current generator to drive compressor to realize.
Realize, in solutions for refrigeration, having the following disadvantages at existing air-conditioning fluid motor-driven aircondition:
1, airconditioning control solenoid valve must not electricity condition, there will be pressure oil and pours in down a chimney into air-conditioning oil hydraulic motor, impel it to reverse, cause compressor damage.
2, airconditioning control solenoid valve must not electricity condition, if let out in air-conditioning oil hydraulic motor, follow-up hydraulic system will be caused to occur, and underpressure maybe can not build the faults such as pressure.
If 3 airconditioning control solenoid valve clamping stagnations are in neutral position, namely pressure oil does not communicate with the outlet of solenoid valve, can cause the damage of oil pump.
Model utility content
In view of this, the utility model proposes a kind of hydrovalve and electric power operation car air-conditioning hydraulic system, can effectively prevent air-conditioning oil hydraulic motor from reversing, avoid because of air-conditioning oil hydraulic motor rollback corruption compressor; Can effectively prevent the hydraulic system pressure deficiency because letting out generation in air-conditioning oil hydraulic motor from maybe can not build the faults such as pressure.
On the one hand, the utility model provides a kind of hydrovalve, selector valve and one-way valve and relief valve is integrated with in valve body, the filler opening of valve body communicates with the filler opening of selector valve, first hydraulic fluid port of valve body is connected with the first oil outlet of selector valve, second hydraulic fluid port of valve body is connected with the filler opening of one-way valve, and the filler opening of relief valve is connected with the filler opening of selector valve, and the 3rd hydraulic fluid port of valve body and the oil outlet of relief valve and the oil outlet of one-way valve are interconnected.
Further, valve body offers return opening, the second oil outlet of selector valve is connected with the 3rd hydraulic fluid port of valve body, and the return opening of valve body is connected with the return opening of selector valve, and when selector valve is in right position, the filler opening of valve body communicates with the 3rd hydraulic fluid port of valve body; When selector valve is in left position, the filler opening of valve body communicates with the first hydraulic fluid port of valve body.
In addition, the utility model additionally provides a kind of electric power operation car air-conditioning hydraulic system, comprise air-conditioning oil hydraulic motor and above-mentioned hydrovalve, the filler opening of air-conditioning oil hydraulic motor is connected with the first hydraulic fluid port of valve body, and the oil outlet of air-conditioning oil hydraulic motor is connected with the second hydraulic fluid port of valve body.
Further, the 3rd hydraulic fluid port of valve body is connected with the first executive component oil-feed oil circuit or fuel tank.
Further, the filler opening of valve body is connected with the fuel-displaced oil circuit of the second executive component.
In addition, the utility model additionally provides another kind of electric power operation car air-conditioning hydraulic system, comprise air-conditioning oil hydraulic motor, selector valve, one-way valve, relief valve, the filler opening of air-conditioning oil hydraulic motor is connected with the first oil outlet of selector valve, the filler opening of one-way valve is connected with the oil outlet of air-conditioning oil hydraulic motor, the filler opening of relief valve is connected with the filler opening of selector valve, and the oil outlet of relief valve is connected with the oil outlet of one-way valve.
Further, comprise fuel tank, the return opening of selector valve is connected with fuel tank, and the second oil outlet of selector valve is connected with the oil outlet of relief valve and the oil outlet of one-way valve; When selector valve is in right position, the filler opening of selector valve communicates with the second oil outlet of selector valve; When selector valve is in left position, the filler opening of selector valve communicates with the first oil outlet of selector valve.
Further, the second oil outlet of selector valve is connected with the first executive component oil-feed oil circuit or fuel tank.
Further, the filler opening of selector valve is connected with the fuel-displaced oil circuit of the second executive component.
A kind of hydrovalve that the utility model provides and electric power operation car air-conditioning hydraulic system, owing to being provided with one-way valve in hydrovalve and electric power operation car air-conditioning hydraulic system, effectively can prevent air-conditioning oil hydraulic motor from reversing, avoid because of air-conditioning oil hydraulic motor rollback corruption compressor; Can effectively prevent the hydraulic system pressure deficiency because letting out generation in air-conditioning oil hydraulic motor from maybe can not build the faults such as pressure.
Owing to being provided with relief valve in hydrovalve and electric power operation car air-conditioning hydraulic system, relief valve is between the oil inlet and oil return road of air-conditioning oil hydraulic motor, ensure that between the filler opening of air-conditioning oil hydraulic motor and the oil outlet of air-conditioning oil hydraulic motor, pressure reduction is constant, place restrictions on the working pressure of air-conditioning oil hydraulic motor, prevented from causing because working pressure is too high air-conditioning oil hydraulic motor to damage.
Because the filler opening of relief valve is connected with the filler opening of selector valve, if selector valve clamping stagnation is in neutral position, namely the filler opening of selector valve does not communicate with the first oil outlet of selector valve and the second oil outlet, and relief valve plays overflow effect, can not cause the damage of oil pump.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the electric power operation car air-conditioning hydraulic schematic of the utility model first embodiment;
Fig. 2 is the electric power operation car air-conditioning hydraulic schematic of the utility model second embodiment.
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Below in conjunction with Fig. 1 to Fig. 2, preferably the first embodiment of the present utility model and the second embodiment are described in further detail.
As shown in Figure 1, the electric power operation car air-conditioning hydraulic system of this preferred first embodiment, comprises air-conditioning oil hydraulic motor 6, selector valve 4, one-way valve 7, relief valve 5.The filler opening of air-conditioning oil hydraulic motor 6 is connected with the first oil outlet of selector valve 4, the filler opening of one-way valve 7 is connected with the oil outlet of air-conditioning oil hydraulic motor 6, the filler opening of relief valve 5 is connected with the filler opening of selector valve 4, and the oil outlet of relief valve 5 is connected with the oil outlet of one-way valve 7.
Selector valve 4 is two-position four-way solenoid directional control valve, and the return opening of selector valve 4 is connected with fuel tank 3, and the second oil outlet of selector valve 4 is connected with the oil outlet of the oil outlet of relief valve 5 and one-way valve 7; When selector valve 4 is in right position, the filler opening of selector valve 4 communicates with the second oil outlet of selector valve 4, and the return opening of selector valve 4 and the first oil outlet of selector valve 4 interrupt.When selector valve 4 is in left position, the filler opening of selector valve 4 communicates with the first oil outlet of selector valve 4, and the return opening of selector valve 4 and the second oil outlet of selector valve 4 interrupt.Selector valve 4 also can adopt general on-off valve to realize.
Oil pump 2 is driven by motor 1, and the filler opening of selector valve 4 is connected with the oil-feed oil circuit of oil pump 2, the second oil outlet of selector valve 4 is connected with the first executive component 8 oil-feed oil circuit, also can connects fuel tank 3.When selector valve 4 obtains electric, when selector valve 4 is in left position, the pressure oil that oil pump 2 exports flows to selector valve 4, air-conditioning oil hydraulic motor 6, one-way valve 7, first executive component 8, fuel tank 3 successively.Air-conditioning oil hydraulic motor 6 rotates forward, and because the cracking pressure of relief valve 5 is 5MPa, makes pressure reduction between the oil outlet of the filler opening of air-conditioning oil hydraulic motor 6 and air-conditioning oil hydraulic motor 6 constant in 5MPa.
When selector valve 4 dead electricity, when selector valve 4 is in right position, the pressure oil that oil pump 2 exports flows to selector valve 4, first executive component 8, fuel tank 3 successively.Due to the single effect of one-way valve 7, air-conditioning oil hydraulic motor 6 stops the rotation, and therefore can effectively prevent air-conditioning oil hydraulic motor 6 from reversing, and avoids because of air-conditioning oil hydraulic motor 6 rollback corruption compressor.In addition, if let out in air-conditioning oil hydraulic motor 6 occurs, due to the single effect of one-way valve 7, the pressure oil in the first executive component 8 oil-feed oil circuit cannot be leaked by one-way valve 7, and the first executive component 8 oil-feed oil circuit pressure deficiency can not be caused maybe can not to build the faults such as pressure.
When selector valve 4 clamping stagnation is in neutral position, namely the filler opening of selector valve 4 does not communicate with the first oil outlet of selector valve 4 and the second oil outlet.The pressure oil that oil pump 2 exports flows to relief valve 5, first executive component 8, fuel tank 3 successively.Relief valve 5 plays overflow effect in electric power operation car air-conditioning hydraulic system, can not cause the damage of oil pump 2.
In order to realize hydraulic element modularization, selector valve 4 and one-way valve 7 and relief valve 5 can be made into a hydrovalve, selector valve 4 and one-way valve 7 and relief valve 5 are arranged on the valve body of hydrovalve.Valve body offers oil inlet P, oil return inlet T, the first hydraulic fluid port B, the second hydraulic fluid port A, the 3rd hydraulic fluid port C, the filler opening of air-conditioning oil hydraulic motor 6 is connected with the first hydraulic fluid port B of valve body, the oil outlet of air-conditioning oil hydraulic motor 6 is connected with the second hydraulic fluid port A of valve body, and the 3rd hydraulic fluid port C of valve body is connected with the first executive component 8 oil-feed oil circuit.
The oil inlet P of valve body communicates with the filler opening of selector valve 4, first hydraulic fluid port B of valve body is connected with the first oil outlet of selector valve 4, second hydraulic fluid port A of valve body is connected with the filler opening of one-way valve 7, the filler opening of relief valve 5 is connected with the filler opening of selector valve 4, and the 3rd hydraulic fluid port C of valve body and the oil outlet of relief valve 5 and the oil outlet of one-way valve 7 are interconnected.Second oil outlet of selector valve 4 is connected with the 3rd hydraulic fluid port C of valve body, and the oil return inlet T of valve body is connected with the return opening of selector valve 4, and when selector valve 4 is in right position, the oil inlet P of valve body communicates with the 3rd hydraulic fluid port C of valve body; When selector valve 4 is in left position, the oil inlet P of valve body communicates with the first hydraulic fluid port B of valve body.
As shown in Figure 2, the electric power operation car air-conditioning hydraulic system of this preferred second embodiment, the electric power operation car air-conditioning hydraulic system of the second embodiment is different from the first embodiment to be: on the filler opening of selector valve 4, be connected with the fuel-displaced oil circuit of the second executive component 9, the second oil outlet of selector valve 4 is connected with fuel tank 3.The oil inlet P of i.e. valve body is connected with the fuel-displaced oil circuit of the second executive component 9, and the 3rd hydraulic fluid port C of valve body is connected with fuel tank 3.Second executive component 9 oil-feed oil circuit is connected with the output circuit of oil pump 2,
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (9)
1. a hydrovalve, it is characterized in that: in valve body, be integrated with selector valve (4) and one-way valve (7) and relief valve (5), the filler opening (P) of valve body communicates with the filler opening of selector valve (4), first hydraulic fluid port (B) of valve body is connected with the first oil outlet of selector valve (4), second hydraulic fluid port (A) of valve body is connected with the filler opening of one-way valve (7), the filler opening of relief valve (5) is connected with the filler opening of selector valve (4), 3rd hydraulic fluid port (C) of valve body is interconnected with the oil outlet of relief valve (5) and the oil outlet of one-way valve (7).
2. hydrovalve according to claim 1, it is characterized in that, valve body offers return opening (T), second oil outlet of selector valve (4) is connected with the 3rd hydraulic fluid port (C) of valve body, the return opening (T) of valve body is connected with the return opening of selector valve (4), when selector valve (4) is in right position, the filler opening (P) of valve body communicates with the 3rd hydraulic fluid port (C) of valve body; When selector valve (4) is in left position, the filler opening (P) of valve body communicates with first hydraulic fluid port (B) of valve body.
3. an electric power operation car air-conditioning hydraulic system, it is characterized in that: comprise air-conditioning oil hydraulic motor (6) and hydrovalve as claimed in claim 1 or 2, the filler opening of air-conditioning oil hydraulic motor (6) is connected with first hydraulic fluid port (B) of valve body, and the oil outlet of air-conditioning oil hydraulic motor (6) is connected with second hydraulic fluid port (A) of valve body.
4. electric power operation car air-conditioning hydraulic system according to claim 3, is characterized in that, the 3rd hydraulic fluid port (C) of valve body is connected with the first executive component (8) oil-feed oil circuit or fuel tank (3).
5. the electric power operation car air-conditioning hydraulic system according to claim 3 or 4, is characterized in that, the filler opening (P) of valve body is connected with the second executive component (9) fuel-displaced oil circuit.
6. an electric power operation car air-conditioning hydraulic system, it is characterized in that: comprise air-conditioning oil hydraulic motor (6), selector valve (4), one-way valve (7), relief valve (5), the filler opening of air-conditioning oil hydraulic motor (6) is connected with the first oil outlet of selector valve (4), the filler opening of one-way valve (7) is connected with the oil outlet of air-conditioning oil hydraulic motor (6), the filler opening of relief valve (5) is connected with the filler opening of selector valve (4), and the oil outlet of relief valve (5) is connected with the oil outlet of one-way valve (7).
7. electric power operation car air-conditioning hydraulic system according to claim 6, it is characterized in that: comprise fuel tank (3), the return opening of selector valve (4) is connected with fuel tank (3), and the second oil outlet of selector valve (4) is connected with the oil outlet of the oil outlet of relief valve (5) and one-way valve (7); When selector valve (4) is in right position, the filler opening of selector valve (4) communicates with the second oil outlet of selector valve (4); When selector valve (4) is in left position, the filler opening of selector valve (4) communicates with the first oil outlet of selector valve (4).
8. electric power operation car air-conditioning hydraulic system according to claim 7, is characterized in that, the second oil outlet of selector valve (4) is connected with the first executive component (8) oil-feed oil circuit or fuel tank (3).
9. the electric power operation car air-conditioning hydraulic system according to claim 6 to 8 any one, is characterized in that, the filler opening of selector valve (4) is connected with the second executive component (9) fuel-displaced oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790077.3U CN205225914U (en) | 2015-10-13 | 2015-10-13 | Hydrovalve and electric power operation car air conditioner hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520790077.3U CN205225914U (en) | 2015-10-13 | 2015-10-13 | Hydrovalve and electric power operation car air conditioner hydraulic system |
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| Publication Number | Publication Date |
|---|---|
| CN205225914U true CN205225914U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520790077.3U Active CN205225914U (en) | 2015-10-13 | 2015-10-13 | Hydrovalve and electric power operation car air conditioner hydraulic system |
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| Country | Link |
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| CN (1) | CN205225914U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740747A (en) * | 2017-10-13 | 2018-02-27 | 三汽车起重机械有限公司 | The control method of speed limit hydraulic motor, crane and motor rotary speed |
| CN108757602A (en) * | 2018-08-27 | 2018-11-06 | 中铁工程装备集团有限公司 | Drill jumbo air-conditioning double-power hydraulic control system and drill jumbo |
-
2015
- 2015-10-13 CN CN201520790077.3U patent/CN205225914U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740747A (en) * | 2017-10-13 | 2018-02-27 | 三汽车起重机械有限公司 | The control method of speed limit hydraulic motor, crane and motor rotary speed |
| CN108757602A (en) * | 2018-08-27 | 2018-11-06 | 中铁工程装备集团有限公司 | Drill jumbo air-conditioning double-power hydraulic control system and drill jumbo |
| CN108757602B (en) * | 2018-08-27 | 2024-02-02 | 中铁工程装备集团有限公司 | Double-power hydraulic control system of air conditioner of drill jumbo and drill jumbo |
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