CN201041441Y

CN201041441Y - Refrigerator measuring complementary system for coolant filling apparatus

Info

Publication number: CN201041441Y
Application number: CNU2006201165943U
Authority: CN
Inventors: 刘均; 郭明新; 唐智; 彭兴国
Original assignee: Shenzhen Launch Technology Co Ltd
Current assignee: Shenzhen Launch Technology Co Ltd
Priority date: 2006-06-10
Filing date: 2006-06-10
Publication date: 2008-03-26
Anticipated expiration: 2016-06-10

Abstract

The utility model relates to a refrigerant measurement and supplement system applied in a secondary refrigerant filling device, and comprises a measuring module, a CPU, a program memorizer, a data memorizer, an input module, a display module, a supplemental executive module, a filling executive module and a power supply module; wherein, the power supply module is respectively connected with the measuring module, the CPU, the program memorizer, the data memorizer, the input module, the display module, the supplemental executive module and the filling executive module for providing a working power supply; the CPU is respectively connected with the measuring module, the CPU, the program memorizer, the data memorizer, the input module, the display module, the supplemental executive module and the filling executive module; the system can automatically perform the measurement to a refrigerant dose in the equipment before secondary refrigerant filling device performs the filling of refrigerant, when the refrigerant is short, the system can automatically remind about the shortage of the refrigerant, and a reference value required to complement the refrigerant can be given.

Description

The cold-producing medium that is applied to coolant charging equipment is measured replenishment system

Technical field

The utility model relates to a kind of cold-producing medium that is applied to coolant charging equipment and measures replenishment system.

Background technology

Coolant charging equipment should guarantee that the coolant charging Device memory has enough cold-producing mediums to air conditioning for automobiles filling cold-producing medium the time, operate smoothly, finish efficiently to guarantee the cold-producing medium filling.Existing coolant charging equipment adopts the artificial judgment refrigerant amount whether enough to reach the pattern that artificial measuring and calculating need replenish refrigerant amount mostly, being prone in operation because of artificial error in judgement causes cold-producing medium in time to replenish or situation such as magnitude of recruitment deficiency, thereby automobile air-conditioning refrigeration agent filling operation sequence can not be carried out smoothly efficiently, therefore be necessary to invent a kind of cold-producing medium that is applied to coolant charging equipment and measure replenishment system, can be before the cold-producing medium filling, automatically the refrigerant amount in the equipment is measured, when a certain amount of, can point out lack of refrigerant at lack of refrigerant automatically, and can point out the reference value that needs to replenish refrigerant amount, can avoid the untimely or cold-producing medium magnitude of recruitment parameter of the cold-producing medium complement operation that causes because of the artificial error in judgement of operator that incorrect situation is set so greatly, guarantee carrying out smoothly of cold-producing medium filling operation coolant charging equipment.

Summary of the invention

At above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of cold-producing medium that is applied to coolant charging equipment to measure replenishment system, this system can measure automatically to the refrigerant amount in the coolant charging equipment before the cold-producing medium filling, and a predefined additional critical value in measurement result and the system compared, when lack of refrigerant, can point out lack of refrigerant automatically, and calculating the reference value that needs to replenish refrigerant amount, the operator can select to replenish earlier the cold-producing medium operation or directly select cold-producing medium filling operation according to actual conditions.

For achieving the above object, the utility model provides a kind of cold-producing medium that is applied to coolant charging equipment to measure replenishment system, and it comprises a measurement module; One CPU; One program storage; One data storage; One input module; One display module; One replenishes Executive Module; One filling Executive Module; One power module; Described power module is connected so that working power to be provided with described measurement module, CPU, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively; Described CPU is connected with described measurement module, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively; Described program storage is used for storing data information and control program etc., and program storage is reserved the I/O serial line interface, can upgrade internal data and program and upgrades by the I/O serial line interface reserved; Described data storage is used to store necessary parameter such as additional critical value.

Brief Description Of Drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the pipeline connection diagram of the utility model embodiment;

Fig. 2 is the hardware block diagram of the utility model embodiment;

Fig. 3 is the workflow diagram of the utility model embodiment.

The specific embodiment

Shown in the pipeline connection diagram of Fig. 1 the utility model embodiment, the coolant charging equipment refrigerant cylinder of present embodiment replenishes bottle by pipeline and external refrigerant and is connected, be connected with air conditioning for automobiles by pipeline simultaneously, when air conditioning for automobiles being carried out the cold-producing medium filling, need earlier the refrigerant-recovery in the air conditioning for automobiles to be arrived in the refrigerant cylinder of coolant charging equipment, if the still not enough air conditioning for automobiles filling time spent of the refrigerant amount in back filing provision refrigerant cylinder is reclaimed in the automobile air-conditioning refrigeration agent, just need replenish certain cold-producing medium in the filing provision refrigerant cylinder from the external refrigerant storage tank.

As Fig. 2 is the hardware block diagram of present embodiment, and the utility model provides a kind of cold-producing medium that is applied to coolant charging equipment to measure replenishment system, and it mainly comprises a measurement module; One CPU; One program storage; One data storage; One input module; One display module; One replenishes Executive Module; One filling Executive Module; One power module; Described measurement module mainly comprises a weighing sensor and an A/D change-over circuit, is used for the measurement to filing provision inner refrigerant amount; Described power module provides 5V and two kinds of operating voltages of 12V, and it is connected so that working power to be provided with described CPU, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively; Described CPU is connected with described measurement module, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively; But described data storage and program storage are the overprogram memory, be connected with CPU by data/address bus, control bus separately, wherein program storage is used for storing data information and control program etc., program storage is reserved the I/O serial line interface, can upgrade internal data and program and upgrade by the I/O serial line interface reserved, data storage be used to store necessary parameter such as additional critical value; Input module can adopt the hardware of forms such as film key or touch-screen; Display module can adopt dot matrix LCD liquid crystal display or LED charactron, and is connected the realization transfer of data with CPU by the I/O parallel interface; Replenish Executive Module and all can be one or more switching devices with the filling Executive Module, be connected with CPU by the I/O interface, switching device can be selected devices such as relay or switching tube for use, CPU sends the action command of each device to by the I/O interface switching device of additional Executive Module and filling Executive Module, and then device actions such as control magnetic valve, compressor and vavuum pump, realize that cold-producing medium replenishes a little functions such as reaching filling.

Seeing also Fig. 3 below is workflow diagram of the present utility model, the cold-producing medium of present embodiment is measured replenishment system four kinds of operation display interfaces is provided, switch by certain logic, comprise main interface, cold-producing medium filling interface, short of refrigerant prompting interface and additional cold-producing medium interface, the operator is at first after the filling instruction is selected at main interface, system is measured the refrigerant amount in the equipment automatically, and measurement result and the additional critical value that sets in advance in system compared, if relatively judged result is the cold-producing medium abundance, then system switches to cold-producing medium filling interface, and the operator can import instruction makes system carry out the cold-producing medium filling operation; If relatively judged result is a lack of refrigerant, then system automatically switches to short of refrigerant prompting interface, this interface provides and whether has been to replenish two kinds of orders of cold-producing medium for operator's selection, cold-producing medium filling interface is switched go back in system if selection is not ordered, the operator can finish the cold-producing medium filling operation in the prerequisite system of giving an order that does not replenish cold-producing medium, if select to replenish the cold-producing medium order, then system switches to and replenishes the cold-producing medium interface, system shows the cold-producing medium magnitude of recruitment reference value that calculates automatically simultaneously, the operator can change this parameter, select the cold-producing medium supplementary instructions then, system automatically switches to cold-producing medium filling interface after carrying out the cold-producing medium supplementary procedure, and the operator can continue to finish the cold-producing medium filling operation by command system.

Pass through the utility model, coolant charging equipment is before carrying out cold-producing medium filling operation, can measure the refrigerant amount in the equipment automatically, and can provide the lack of refrigerant prompting automatically by judging, system can calculate and show according to measurement result after the operator selects to replenish the cold-producing medium function needs to replenish the reference value of refrigerant amount for operator's reference, so both avoided greatly making cold-producing medium additional untimely or not enough because of artificial error in judgement, cold-producing medium filling operation is carried out smoothly, also simplified the operation that the operator replenishes cold-producing medium.

Claims

1. the cold-producing medium that is applied to coolant charging equipment is measured replenishment system, it is characterized in that it comprises a measurement module; One CPU; One program storage; One data storage; One input module; One display module; One replenishes Executive Module; One filling Executive Module; One power module; Described power module is connected so that working power to be provided with described measurement module, CPU, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively; Described CPU is connected with described measurement module, program storage, data storage, input module, display module, additional Executive Module and filling Executive Module respectively.

2. measure replenishment system according to the cold-producing medium of the coolant charging equipment that is applied to of claim 1, it is characterized in that: described measurement module mainly comprises a weighing sensor and an A/D change-over circuit.