CN220302229U

CN220302229U - Fuel oil heating device

Info

Publication number: CN220302229U
Application number: CN202321609983.XU
Authority: CN
Inventors: 陈文珂; 赵玲; 姜海波; 于策; 王文勇; 赵弘
Original assignee: Hebei Zhongchi Electronic Technology Co ltd
Current assignee: Hebei Zhongchi Electronic Technology Co ltd
Priority date: 2023-06-25
Filing date: 2023-06-25
Publication date: 2024-01-05
Anticipated expiration: 2033-06-25

Abstract

The utility model provides a fuel oil heating device, which comprises a water collecting cup and a plurality of heating branch structures; an oil containing space is formed inside the water collecting cup; the oil-collecting cup comprises an oil accommodating space, a plurality of heating branch structures, a plurality of water collecting cup and a water collecting cup. According to the fuel oil heating device, the plurality of heating branch structures which are connected in parallel are arranged, the current of the main circuit is divided by the plurality of heating branch structures, when the current of each branch is in the safety range of the temperature control, the current flow of the main circuit is improved, and then the heating power is improved, so that the device can meet the high-power heating requirement, and the applicability is improved; the plurality of heating branch structures are arranged in parallel, and even if one heating branch structure has a problem, the other heating branch structure can still work with low power, so that the heating function of the device is ensured.

Description

Fuel oil heating device

Technical Field

The utility model belongs to the technical field of automobile engine filters, and particularly relates to a fuel heating device.

Background

The diesel engine has high reliability, better thermal efficiency and economy than the gasoline engine, and is widely applied to the production and manufacture of vehicles.

However, diesel oil has the characteristic of low-temperature solidification, and in cold winter and northern areas, the diesel oil in a pipeline in front of an engine high-pressure oil pump and a filter is sticky and poor in fluidity, and meanwhile, the diesel oil in the existing market contains water, so that the engine is difficult to start due to freezing of the water under cold conditions, and even flameout is caused due to unsmooth oil supply in driving, so that the normal operation of the whole vehicle is greatly influenced, and potential safety hazards exist. In order to solve the problem, the existing heater is additionally arranged in the water collecting cup, the temperature of diesel oil is sensed by the temperature controller, the heater is started to heat the diesel oil, the heating power of the existing heater is small, when the diesel oil is heated at low temperature, the heating is slow, the heating time is long, the diesel oil cannot be quickly heated at low temperature, and the use limitation of the heater is high.

Disclosure of Invention

The embodiment of the utility model provides a fuel oil heating device, which aims to solve the technical problems that in the prior art, the heating efficiency is low when diesel oil is heated, high power cannot be used for heating at low temperature, and the use limitation is high.

In order to achieve the above purpose, the utility model adopts the following technical scheme: there is provided a fuel heating apparatus comprising:

a water collecting cup, wherein an oil containing space is formed inside; and

the heating branch structures are arranged in the oil containing space and are connected in parallel, each heating branch structure comprises a temperature control part and a heater which are arranged in series, and the heater can heat fuel oil in the water collecting cup.

In a possible implementation manner, the bottom of the oil containing space is provided with an isolation shell, the isolation shell is of a cuboid structure, a plurality of temperature control pieces are respectively arranged inside the isolation shell and are arranged at intervals along the length direction of the isolation shell, and the heating end of the heater penetrates through the isolation shell and stretches into the oil containing space.

In one possible implementation manner, a connecting plate is arranged inside the isolation shell, a plurality of connecting positions are formed on the connecting plate, and the temperature control piece is fixedly connected with the corresponding connecting positions.

In one possible implementation, a support step is further provided on a side of the connection plate away from the heating end of the heater, and the support step supports the temperature control element.

In one possible implementation manner, a wire guide hole penetrating up and down is formed in the connecting plate, and positive wires are arranged in the wire guide hole in a penetrating manner and are respectively electrically connected with the positive electrodes of the temperature control pieces.

In one possible implementation manner, the bottom of the water collecting cup is provided with a threading through hole;

the utility model discloses a wire collecting tube, including isolation shell downside sealing connection, the isolation shell downside sealing connection has the wire collecting tube, the wire collecting tube runs through downwards the threading through-hole, just the periphery of wire collecting tube with through-hole sealing connection.

In one possible implementation manner, the line collecting pipe is provided with a sealing groove corresponding to the outer peripheral surface of the threading through hole, a sealing ring is installed in the sealing groove, and the outer side surface of the sealing ring is tightly abutted to the inner peripheral surface of the threading through hole.

In one possible implementation manner, the top of the isolation shell is provided with an opening, the isolation shell is internally filled with insulating sealant, the upper surface of the temperature control part forms a temperature sensing surface, the temperature sensing surface is higher than the opening, and the upper surface of the sealant is not higher than the temperature sensing surface.

In one possible implementation manner, two sides of the isolation shell, which are arranged along the width direction, are respectively provided with corresponding ear plates, the ear plates are attached to the bottom surface of the oil containing space, and the ear plates are in fastening connection with the water collecting cup through threaded fasteners.

In one possible implementation manner, the isolation shell is provided with a mounting opening, a conductive contact pin is arranged in the mounting opening, a limiting protrusion is further arranged in the mounting opening in a protruding mode, a limiting groove matched with the limiting protrusion in a clamping mode is formed in the outer peripheral surface of the heater, and the heater is connected with the conductive contact pin in a plugging mode in a conductive mode.

Compared with the prior art, the fuel heating device provided by the utility model is provided with a plurality of parallel heating branch structures, each temperature control part is arranged on the branch circuit, the branch current is smaller than the main circuit current, under the condition that the temperature control part safely limits the current unchanged, the temperature control part is arranged on the branch to improve the current value of the main circuit, and compared with the existing circuit, the current flowing through the heater is obviously improved, so that the heat is increased, the heating efficiency is improved, the device can meet the low-temperature high-power rapid heating requirement, and the applicability is improved; the temperature control part and the heater are arranged on the same branch, and the temperature near the heater is detected, so that the temperature of the fuel around the single heater can be measured more accurately, the temperature of the fuel is ensured to be in a safe temperature range, and the heating safety is improved; the heating branch structures are connected in parallel, and even if one heating branch structure has a problem, the other heating branch structure can still work with low power, so that the heating function of the device is ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic diagram of a front view structure of a fuel heating device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram illustrating the assembly of a heating branch structure and an insulating shell according to an embodiment of the present utility model;

FIG. 3 is an assembled schematic view of a connection plate and heating branch structure employed in an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a line concentration tube according to an embodiment of the present utility model;

FIG. 5 is a schematic structural view of a connection board according to an embodiment of the present utility model;

FIG. 6 is a schematic structural view of a reinforcing rib according to an embodiment of the present utility model;

FIG. 7 is an enlarged view of A in FIG. 6;

FIG. 8 is a schematic view of a water collection cup according to an embodiment of the present utility model;

fig. 9 is a basic schematic diagram of a fuel heating device according to an embodiment of the present utility model.

Reference numerals illustrate:

1. a water collecting cup; 11. a threading through hole;

2. an isolation case; 21. a line collecting pipe; 22. ear plates; 23. reinforcing ribs; 24. a mounting port; 241. a limit protrusion;

3. a heating branch structure; 31. a temperature control piece; 311. a temperature sensing surface; 32. a heater; 321. a limit groove;

4. a connecting plate; 41. a connection site; 42. a support step; 43. a wire guide;

5. a seal ring;

6. sealing glue;

7. a positive electrode lead;

8. a negative electrode lead;

9. conductive pins.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the terms "length," "width," "height," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," "tail," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. Furthermore, the meaning of "a plurality of", "a number" is two or more, unless explicitly defined otherwise.

The inventor finds that the existing heater is formed by connecting a plurality of groups of heaters in parallel, a contact switch type protection temperature controller is arranged on a main circuit, the temperature controller is arranged on the main circuit, the current quantity is required to be within the rated current range of the temperature controller, and the problem that the temperature controller is directly fused due to overlarge current, so that the existing heater can only slowly heat and has long heating time is solved.

Referring to fig. 1 to 9, a description will be given of a fuel heating device according to the present utility model. The fuel oil heating device comprises a water collecting cup 1 and a plurality of heating branch structures 3. An oil containing space is formed inside the water collecting cup 1; the plurality of heating branch structures 3 are arranged in the oil containing space, the plurality of heating branch structures 3 are connected in parallel, each heating branch structure 3 comprises a temperature control part 31 and a heater 32 which are arranged in series, and the heater 32 can heat the fuel in the water collecting cup 1.

The number of the heating branch structures 3 is not limited to 2, and a plurality of heating branch structures 3 are arranged in parallel.

Compared with the prior art, the fuel heating device provided by the embodiment is provided with a plurality of heating branch structures 3 which are connected in parallel, each temperature control piece 31 is arranged on a branch circuit, the branch current is smaller than the main circuit current, under the condition that the temperature control piece 31 safely limits the current unchanged, the temperature control piece 31 is arranged on the branch to improve the current value of the main circuit, compared with the existing circuit, the current flowing through the heater 32 is obviously improved, the heat quantity is increased, the heating efficiency is improved, the device can meet the low-temperature high-power rapid heating requirement, and the applicability is improved; the temperature control piece 31 and the heater 32 are arranged on the same branch, and the temperature near the heater 32 is detected, so that the temperature of the fuel around the single heater 32 can be measured more accurately, the temperature of the fuel is ensured to be in a safe temperature range, and the heating safety is improved; the plurality of heating branch structures 3 are connected in parallel, even if one heating branch structure 3 has a problem, the other heating branch structure 3 can still work with low power, so that the heating function of the device is ensured.

In some embodiments, the temperature control member 31 is a switch-type temperature controller, and the off temperature points of the temperature control members 31 may be the same or different.

Taking an example of two embodiments of the temperature control 31, see fig. 9: the temperature point of one temperature control piece 31 is a first preset temperature, the temperature point of the other temperature control piece 31 is a second preset temperature, and the first preset temperature is lower than the second preset temperature.

The temperature control piece 31 senses the temperature of the current diesel oil, when the temperature is lower than the conduction temperature of the temperature control piece 31, the temperature control pieces 31 of all branches are respectively conducted, the heater 32 starts to work, the heater 32 heats the fuel oil, the disconnection temperature points of the two temperature control pieces 31 are different, when the temperature of the fuel oil is gradually heated, the oil temperature rises, the branch circuit where the temperature control piece 31 is located is disconnected when reaching the disconnection temperature point of the first temperature control piece 31, the power output of the heating branch structure 3 is reduced, when the temperature of the fuel oil continues to rise and reaches the second preset temperature, the branch circuit where the temperature control piece is located is disconnected, the two heating branch structures 3 stop working, when the low temperature can be realized through the arrangement of the two temperature control pieces 31, the heating branch structures 3 work in full power, when reaching the target temperature, the power output is controlled, and when reaching the high temperature disconnection temperature, the heating branch structure 3 stops working.

In some embodiments, referring to fig. 1, an insulation shell 2 is disposed at the bottom of the oil containing space, the insulation shell 2 is in a cuboid structure, and a plurality of temperature control elements 31 are respectively disposed inside the insulation shell 2 and are arranged at intervals along the length direction of the insulation shell 2, and a heating end of the heater penetrates through the insulation shell 2 and stretches into the oil containing space. The insulating shell 2 isolates the temperature control 31 and the circuit from fuel, so that the spark is prevented from contacting the fuel when the circuit fails, the safety of the device is ensured, the insulating shell 2 provides protection for the temperature control 31, and the stable operation of the circuit is ensured.

As another assembled embodiment of the insulation case 2 and the temperature control member 31, the insulation case 2 is a cylindrical member, and a plurality of (annular) temperature control members 31 are circumferentially provided inside the insulation case 2.

As another specific embodiment of the separator 2, the separator 2 is a shaped columnar member.

In some embodiments, referring to fig. 3 and 5, a connection board 4 is disposed inside the isolation casing 2, and a plurality of connection sites 41 are formed on the connection board 4, and the temperature control member 31 is fixedly connected with the corresponding connection sites 41. The connecting plate 4 provides the mounted position of temperature control piece 31, and temperature control piece 31 and hookup location 41 fixed connection realize that temperature control piece 31 is fixed on connecting plate 4 steadily, avoid appearing temperature control piece 31 at the circumstances that the course of the work rocked.

As a specific embodiment of the fixed connection between the connection location 41 and the temperature control element 31, the connection location 41 is a connection hole, and the connection hole is fixedly inserted into the temperature control element 31.

As another embodiment of the fixed connection between the connection location 41 and the temperature control member 31, the connection location 41 and the temperature control member 31 are welded and fixed.

In some embodiments, refer to fig. 3 and 5. The side of the connecting plate 4 away from the heating end of the heater 32 is also provided with a supporting step 42, and the supporting step 42 supports the temperature control 31. The supporting step 42 increases the contact area between the connecting plate 4 and the temperature control member 31, and improves the supporting stability of the connecting plate 4 to the temperature control member 31.

In some embodiments, referring to fig. 5, a wire hole 43 penetrating up and down is formed on the connection board 4, and the wire hole 43 is penetrated with a positive wire 7, and the positive wire 7 is electrically connected with the positive electrodes of the plurality of temperature controls 31 respectively. The wire guide 43 fixes the positive wire 7, ensuring stable formation of the wire.

In specific implementation, the circuit includes a positive electrode wire 7, a negative electrode wire 8 and a plurality of branch wires, the positive electrode wire 7 is respectively connected with the positive electrode of each heating branch structure 3, and the negative electrode wire 8 is respectively connected with the negative electrode of each heating branch structure 3 to form a loop.

In some embodiments, referring to fig. 8, the bottom of the water collection cup 1 is provided with a threading through hole 11; the lower side of the isolation shell 2 is connected with a line collecting pipe 21 in a sealing mode, the line collecting pipe 21 penetrates through the threading through hole 11 downwards, and the periphery of the line collecting pipe 21 is connected with the threading through hole 11 in a sealing mode. In the concrete implementation, the cathode lead 8 and the anode lead 7 are electrically connected with an external power supply through the inside of the line collecting tube 21, and the line collecting tube 21 can protect the anode lead 7 and the cathode lead 8 and ensure the stability of circuit formation; the line collecting pipe 21 and the threading through hole 11 are in sealing abutting connection, so that fuel cannot flow out from a gap between the line collecting pipe 21 and the threading through hole 11.

In the concrete implementation, the telescopic pipeline is formed at the lower part of the line collecting pipe 21, and the length of the line collecting pipe 21 is adjustable, so that the negative electrode lead 8 and the positive electrode lead 7 are protected conveniently.

In some embodiments, referring to fig. 4, a sealing groove (not shown) is formed on the outer peripheral surface of the line collecting tube 21 corresponding to the threading through hole 11, and a sealing ring 5 is installed in the sealing groove, and the outer side surface of the sealing ring 5 is closely abutted to the inner peripheral surface of the threading through hole 11. The sealing ring 5 can further promote the leakproofness between the line collecting pipe 21 and the threading through hole 11, guarantees that the water collecting cup 1 can hold the fuel, and can not leak the fuel.

In some embodiments, the heater 32 includes a PTC element, an electrode, and a case, an insulating layer is provided on an inner wall of the case, the PTC element is provided inside the case, and the PTC element is connected in series with the temperature control member 31 through the electrode. The PTC element is a heating source and can generate heat after being electrified; the insulating layer can isolate shell and inner electrode, avoids PTC component to break down in the circular telegram in-process, leads to the shell electric leakage, and then leads to the fuel explosion, avoids fuel and electric contact, has guaranteed the security.

In some embodiments, referring to fig. 2 and 3, the top of the isolation shell 2 is opened, the insulation sealant 6 is filled in the isolation shell 2, the upper surface of the temperature control member 31 forms the temperature sensing surface 311, the temperature sensing surface 311 is higher than the opening, and the upper surface of the sealant 6 is not higher than the temperature sensing surface 311. The sealant 6 can fill the exposed cables of each element and circuit, so that the inside of the isolation shell 2 is filled and sealed, the internal elements cannot be contacted with fuel oil, the stability of the whole structure is improved, and the accident risk is reduced.

The sealant 6 is a resin adhesive or a potting adhesive, and seals the inside of the insulating case 2 after solidification molding.

After the sealant 6 is filled, the temperature sensing surface 311 is not covered, and the temperature sensing surface 311 is in contact with the fuel oil to obtain the temperature of the fuel oil.

In some embodiments, referring to fig. 2, two sides of the isolation shell 2 along the width direction are respectively provided with corresponding ear plates 22, the ear plates 22 are attached to the bottom surface of the oil containing space, and the ear plates 22 are fastened and connected with the water collecting cup 1 through threaded fasteners (not shown). The two lug plates 22 provide the installation position for fixing the isolation shell 2 at the bottom of the water collecting cup 1, the lug plates 22 are symmetrically arranged, the bottom plate is uniformly stressed when the bottom plate of the isolation shell 2 is attached to the bottom surface of the oil containing space, the sealing ring 5 is uniformly stressed, and the tightness between the inner side surface of the sealing ring 5 and the periphery of the water collecting tube 21 is ensured.

As another specific embodiment of the ear plate 22, the ear plate 22 is provided along the length direction of the separator 2, correspondingly provided according to the shape of the separator 2.

If the isolation case 2 is cylindrical, the ear plate 22 is installed correspondingly according to the installation space.

In some embodiments, referring to fig. 2, 6 and 7, the isolation shell 2 is provided with a mounting opening 24, a conductive contact pin 9 is arranged in the mounting opening 24, a limiting protrusion 241 is further protruding in the mounting opening 24, a limiting groove 321 which is in clamping fit with the limiting protrusion 241 is formed on the outer circumferential surface of the heater 32, and the heater 32 is in conductive connection with the conductive contact pin 9. Spacing protruding 241 and spacing groove 321 sliding fit for in spacing protruding 241 extending direction was installed to isolation shell 2 to heater 32, guaranteed the mounted position of heater 32, make the interval between a plurality of heaters 32 the same, and then enable each part of fuel to be heated evenly, guaranteed the homogeneity and the heating efficiency of heating.

The number of the conductive pins 9 is two, the terminal of the conductive pin 9 at the top is electrically connected with the temperature control member 31, and the terminal of the conductive pin 9 at the bottom is electrically connected with the negative electrode wire 8 in an inserting manner.

As another specific embodiment of the heater 32 being connected to the negative electrode lead 8, the heater 32 is wire-welded to the negative electrode lead 8 after installation to achieve an electrically conductive connection.

In specific implementation, the heater 32 is a heating rod, the top of the isolation shell 2 is opened, the heating rod is mounted on the isolation shell 2 along the height direction of the isolation shell 2, the top and the bottom of the heating rod are provided with limiting grooves 321 extending along the length direction of the heating rod, the limiting grooves 321 and the limiting protrusions 241 at the bottom are clamped and matched, and finally the sealing glue 6 is poured.

In some embodiments, the side of the insulating housing 2 facing the heater 32 is also provided with a stiffener 23. The reinforcing rib 23 supports the structure of the mounting port 24, improves the structural strength of the mounting port 24, ensures that the heater 32 can be normally assembled on the isolation shell 2, and prevents the mounting port 24 from shrinking and deforming in the injection molding process.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. A fuel oil heating apparatus, comprising:

a water collecting cup, wherein an oil containing space is formed inside; and

2. The fuel oil heating device according to claim 1, wherein an isolation shell is arranged at the bottom of the oil containing space, the isolation shell is of a cuboid structure, a plurality of temperature control pieces are respectively arranged inside the isolation shell and are arranged at intervals along the length direction of the isolation shell, and the heating end of the heater penetrates through the isolation shell and stretches into the oil containing space.

3. The fuel oil heating apparatus as set forth in claim 2, wherein a connection plate is provided inside the separator, a plurality of connection sites are formed on the connection plate, and the temperature control member is fixedly connected with the corresponding connection site.

4. A fuel oil heating apparatus as set forth in claim 3 wherein a side of said connection plate remote from a heating end of said heater is further provided with a support step, said support step supporting said temperature control member.

5. The fuel oil heating apparatus as set forth in claim 3, wherein wire guides penetrating up and down are provided on the connection plate, and positive electrode wires are provided in the wire guides in a penetrating manner, and are electrically connected with the positive electrodes of the plurality of temperature control members, respectively.

6. The fuel oil heating device according to claim 2 or 5, wherein the bottom of the water collecting cup is provided with a threading through hole;

7. The fuel oil heating apparatus according to claim 6, wherein the line collecting pipe is provided with a seal groove corresponding to the outer peripheral surface of the threading through hole, a seal ring is installed in the seal groove, and the outer side surface of the seal ring is closely abutted with the inner peripheral surface of the threading through hole.

8. The fuel oil heating apparatus according to claim 2, wherein the top opening of the separator is filled with an insulating sealant, the upper surface of the temperature control member forms a temperature sensing surface, the temperature sensing surface is higher than the opening, and the upper surface of the sealant is not higher than the temperature sensing surface.

9. The fuel oil heating apparatus as set forth in claim 2, wherein two side surfaces of the separator case disposed in a width direction are respectively provided with corresponding ear plates, the ear plates are attached to a bottom surface of the oil containing space, and the ear plates are fastened and connected with the water collecting cup by screw fasteners.

10. The fuel oil heating device according to claim 2, wherein the isolation shell is provided with a mounting opening, a conductive contact pin is arranged in the mounting opening, a limiting protrusion is further arranged in the mounting opening in a protruding mode, a limiting groove matched with the limiting protrusion in a clamping mode is formed in the outer peripheral surface of the heater, and the heater is connected with the conductive contact pin in an inserting mode in a conducting mode.