CN201457032U

CN201457032U - Heating device in fuel tank of diesel vehicle

Info

Publication number: CN201457032U
Application number: CN2009201093991U
Authority: CN
Inventors: 高志男
Original assignee: 高志男
Current assignee: BEIJING GAOXIN GREAT FILTER CO., LTD.
Priority date: 2009-06-30
Filing date: 2009-06-30
Publication date: 2010-05-12
Anticipated expiration: 2019-06-30

Abstract

A heating device in a fuel tank of a diesel vehicle belongs to the technical field of a matching device of a fuel oil system of a motor vehicle and solves the problem of automatic temperature control and heating of fuel oil in the fuel tank. A thermistor heating plate is clamped between two battery lead plates (1) also used for heat transmission, wherein, one heat-transmission battery lead plate (1) is connected with the negative pole of a power supply, and the other is in series connection with a bimetal temperature controller ZK and then connected with the positive pole of the power supply; the heat-transmission battery lead plates and the power supply are assembled into a whole through welding; and the power supply is connected through an outer connector. When the heating device is assembled for application, the heating device is fixed at the lower end part of an oil outlet pipe of the fuel tank; and an external power is led in through the oil outlet pipe and is interlocked with a vehicle power supply E. The utility model has the beneficial effects of simple structure and arrangement of the circuit, strong wholeness, automatic temperature control, rapid heating, safety protection function, convenient assembly, no requirement of design change of the original vehicle, low cost, convenient use, and good effect; and the heating device can be used with other heating devices of the fuel oil system conveniently.

Description

Heating arrangement in the diesel car fuel oil case

Technical field

The utility model belongs to the corollary apparatus technical field of used in fuel oil system of motor-driven vehicle, relates to the heating arrangement in the diesel car fuel oil case.

Background technology

In the prior art; as the disclosed scheme of CN1524723A; " the upright oil pipe " of heating arrangement in the fuel tank for manufacturing separately; this oil pipe " by two copper pipe suits; its interlayer is sealed into vacuum and is filled with heat-conducting medium "; this oil pipe " it is the no red heat source body of heater element that the sidewall heat conduction of interlayer bottom connects by the PTC sheet "; and be connected with CPK temperature controller electricity loop that microelectronic circuit constitutes; and also must there be ambient temperature biography device and flow temperature sensor that signal is provided in temperature automatically controlled; its weak point is; circuit structure not only; complicated layout, integraty is poor, and the heater element controlled factordisease is many; there is not the failure-free safety guard-safeguard again; also must manufacture the oil outlet pipe of the fuel tank of labyrinth separately, thereby change former car design, be easy to bring safety hazard; for existing diesel-powered vehicle; equipped application difficulty is bigger, also pretty troublesome, and the cost height.

Summary of the invention

The technical matters that solves:

Heating arrangement in the diesel car fuel oil case is provided, overcomes the deficiencies in the prior art, circuit structure, arrange simply, integraty is strong; can not only rapidly and efficiently temperature automatically controlled heating, and the failure-free safety guard-safeguard is arranged, equipped convenient; need not to change former car design, cost is low, and effect is good.

The technical scheme that adopts:

Heating arrangement in the diesel car fuel oil case, temperature booster and power circuit with band temperature control circuit, it is characterized in that: the circuit structure of temperature booster is, the thermally dependent resistor heating plate is clamped at two and conducts heat between the double battery lead plate, the battery lead plate power connection negative pole of holding concurrently that conducts heat, power connection positive pole after the double battery lead plate series connection of another piece heat transfer bi-metal temperature controller; Described temperature booster welding assembly is an one, and power supply is introduced by coupling; Use when being equipped with, globality is immersed in the fuel oil, and must guarantee that bi-metal temperature controller and two double battery lead plates that conduct heat all directly are immersed in the fuel oil.

Beneficial effect:

Circuit structure, layout are simply, integraty is strong, bi-metal temperature controller can be lower than uniform temperature or be higher than under the uniform temperature, automatically be switched on or switched off power supply, thus with the fuel oil temperature automatic guidance in certain scope, realize beginning or stop heating, therefore, firing rate is fast, again can be temperature automatically controlled, and have safety protection function; Equipped convenient, need not to change former car design, cost is low, and is easy to use, effective, is convenient to the supporting application of other heating arrangements with fuel oil system again.

The circuit structure diagram of Fig. 1, fuel tank internal heater;

Fig. 2, fuel tank internal heater integral structure scheme drawing;

Fig. 3, circuit construction of electric power figure;

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings; 7 are shown fuel tank among the figure;

As shown in Figure 1, the circuit structure of fuel tank internal heater is, thermally dependent resistor heating plate PTC is clamped at two heat transfers and holds concurrently between the battery lead plate 1, the battery lead plate 1 power connection negative pole of holding concurrently that conducts heat, power connection positive pole after the double battery lead plate 1 series connection bi-metal temperature controller ZK of another piece heat transfer; Described temperature booster welding assembly is an one, and power supply is introduced by coupling, when the fuel oil temperature in the fuel tank is lower than 7 ℃ or when reaching 17 ℃, bi-metal temperature controller ZK then is switched on or switched off power supply automatically, realizes beginning or stops heating.

As shown in Figure 2, fuel tank internal heater integral structure is, two battery lead plates 1 and clamped thermally dependent resistor heating plate PTC of holding concurrently that conduct heat are fixed on the support body 3 by screw 2, and bi-metal temperature controller ZK is fixed on an end of support body 3, and has power interface 4; Use when being equipped with, the fuel tank internal heater is fixed on the lower end position of fuel tank oil outlet pipe 5, and external source is introduced in fuel tank oil outlet pipe 5, and links together by adaptor union 6 and power interface 4, and support body 3 is the integral molded plastic moulding; Injected plastics material must satisfy anti-fuel oil, high temperature resistant, ageing-resistant and insulation, and the intensity height.

As shown in Figure 3, the structure of power circuit is, interlock with power supply on vehicle E, power supply on vehicle E draws the positive and negative electrode of power supply by source switch DYK, after the moving together contact interlocking switch LSK of anodal connect successively fuse RD and relay J, connect the positive pole of bi-metal temperature controller ZK, moving together contact interlocking switch LSK prepares the retaining interlocking by the driving engine of relay J and car key switch DSK, when negative pole is succeeded electrical equipment J, connect the negative pole of bi-metal temperature controller ZK; Using method, earlier source switch DYK is placed the power connection state, afterwards, place driving engine to prepare retaining car key switch DSK, then the power supply of circuit is promptly connected, bi-metal temperature controller ZK is in running order automatically, prepares retaining as long as car key switch DSK is in driving engine, and is promptly like this always.

Bi-metal temperature controller ZK produces for the well-informed Electrical Appliances Co., Ltd of Zhejiang Province's Yuyao City, and its working temperature range is pressed customer requirements and decided.

Thermally dependent resistor heating plate PTC is that Weihai City, Shandong Province fire shadow Electrical Appliances Co., Ltd produces, and generally being the design resistance value below 20 ℃, with temperature build-up, its resistance value strengthens, and when temperature reached 80 ℃, electric current was almost nil in the circuit.

Claims

1. the heating arrangement in the diesel car fuel oil case, temperature booster and power circuit with band temperature control circuit, it is characterized in that: the circuit structure of temperature booster is, the thermally dependent resistor heating plate is clamped at two and conducts heat between the double battery lead plate, the battery lead plate power connection negative pole of holding concurrently that conducts heat, power connection positive pole after the double battery lead plate series connection of another piece heat transfer bi-metal temperature controller; Described temperature booster welding assembly is an one, and power supply is introduced by coupling.

2. the heating arrangement in the diesel car fuel oil case according to claim 1, it is characterized in that: fuel tank internal heater integral structure is, two battery lead plate (1) and clamped thermally dependent resistor heating plate PTC of holding concurrently that conduct heat, be fixed on the support body (3) by screw (2), bi-metal temperature controller ZK is fixed on an end of support body (3), and has power interface (4); Use when being equipped with, the fuel tank internal heater is fixed on the lower end position of fuel tank oil outlet pipe (5), and external source is introduced in oil outlet pipe (5), and links together by adaptor union (6) and power interface (4), and support body (3) is the integral molded plastic moulding.

3. the heating arrangement in the diesel car fuel oil case according to claim 1 and 2, it is characterized in that: the structure of power circuit is, interlock with power supply on vehicle E, power supply on vehicle E draws the positive and negative electrode of power supply by source switch DYK, after the moving together contact interlocking switch LSK of anodal connect successively fuse RD and relay J, connect the positive pole of bi-metal temperature controller ZK, moving together contact interlocking switch LSK prepares the retaining interlocking by the driving engine of relay J and car key switch DSK, and negative pole connects the negative pole of bi-metal temperature controller ZK when succeeding electrical equipment J.