Flat plate type high-pressure water heating PTC heater assembly

Abstract

The utility model discloses a flat plate type high-pressure water heating PTC heater assembly, and relates to the technical field of water heating PTC heaters. An upper flow channel is arranged at the top end of the lower flow channel, a heating bag is arranged between the upper flow channel and the lower flow channel, an upper shell is arranged at the top end of the upper flow channel, an upper sealing plate is arranged at the top end of the upper shell, a lower sealing plate is arranged at the bottom end of the lower flow channel, and a controller is fixedly connected to one side of the upper sealing plate. The two sides of the lower flow channel, the upper flow channel and the upper shell are each fixedly provided with two fixing blocks which are symmetrically distributed, and the fixing blocks are fixed through screws; according to the water tank, an original single flow channel is changed into the lower flow channel and the upper flow channel, upper, lower, left and right bosses are additionally arranged on each flow channel, streaming is increased, the heat exchange area is increased, the heat exchange efficiency is improved, the power density is improved, the overall size can be reduced, and the requirement for light weight of automobiles is met.

Description

Technical Field

[0001] The utility model relates to the technical field of water-heating PTC heaters, in particular to a flat-plate high-pressure water-heating PTC heater assembly. Background Art

[0002] As a pillar industry strongly supported by the country, new energy vehicles are developing rapidly. More and more OEMs and parts manufacturers are participating in it, and the competition between different brands is becoming more and more fierce. Meeting the needs of users in all aspects, ensuring stable performance, energy saving and cost reduction have always been the key concerns of new energy vehicles.

[0003] Currently, the mainstream PTC water heater adopts a die-cast aluminum structure. This type of PTC water heater has low heat exchange efficiency, long flow channel, large water resistance and heavy weight. Utility Model Content

[0004] In order to solve the problems that the current mainstream PTC water heating heater adopts a die-cast aluminum structure, such as low flow channel heat exchange efficiency, long flow channel, large water resistance and heavy weight; the purpose of the utility model is to provide a flat-plate high-pressure water heating PTC heater assembly.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a flat-plate high-pressure water-heating PTC heater assembly, comprising a downflow channel, an upflow channel is provided at the top of the downflow channel, a heating pack is provided between the upflow channel and the downflow channel, an upper shell is provided at the top of the upflow channel, an upper sealing plate is provided at the top of the upper shell, a lower sealing plate is provided at the bottom of the downflow channel, a controller is fixedly connected to one side of the upper sealing plate, and two symmetrically distributed fixing blocks are fixedly installed on both sides of the downflow channel, the upflow channel and the upper shell, and the fixing blocks are fixed by screws.

[0006] Preferably, the bottom end of the heating pack is fixedly connected with an insulating heat-conducting sheet, and the insulating heat-conducting sheet is fitted with the lower flow channel.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] 1. The water tank of this application is changed from the original single flow channel to a lower flow channel and an upper flow channel. Each flow channel is increased with upper, lower, left and right bosses to increase the bypass flow, increase the heat exchange area, improve the heat exchange efficiency, and increase the power density. The overall volume can be reduced, which meets the requirements of lightweight automobiles;

[0009] The present application reduces thermal resistance by providing an insulating heat-conducting sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 It is a schematic diagram of the structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the structure after being split in the utility model.

[0013] In the figure: 1, lower flow channel; 10, insulating heat conductive sheet; 11, upper flow channel; 12, heating pack; 13, upper shell; 14, upper sealing plate; 15, lower sealing plate; 16, controller; 3, fixing block; 31, fixing seat. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] Example: Figure 1-2 As shown, the utility model provides a flat-plate high-pressure water-heating PTC heater assembly, including a downflow channel 1, an upflow channel 11 is provided at the top of the downflow channel 1, a heating pack 12 is provided between the upflow channel 11 and the downflow channel 1, an upper shell 13 is provided at the top of the upflow channel 11, an upper sealing plate 14 is provided at the top of the upper shell 13, a lower sealing plate 15 is provided at the bottom of the downflow channel 1, a controller 16 is fixedly connected to one side of the upper sealing plate 14, and two symmetrically distributed fixing blocks 3 are fixedly installed on both sides of the downflow channel 1, the upflow channel 11 and the upper shell 13, and the fixing blocks 3 are fixed by screws.

[0016] The bottom end of the heating pack 12 is fixedly connected with an insulating heat-conducting sheet 10, and the insulating heat-conducting sheet 10 is in contact with the lower flow channel 1. By providing the insulating heat-conducting sheet 10, the thermal resistance is reduced.

[0017] A plurality of evenly distributed fixing seats 31 are fixedly mounted on the other two sides of the lower flow channel 1 , the upper flow channel 11 and the upper shell 13 , and the fixing seats 31 are fixedly connected by screws.

[0018] The upper flow channel 11 and the lower flow channel 1 are made of die-cast aluminum, and the lower flow channel 1 is sealed by a stir friction welding process.

[0019] The upper sealing plate 14 on the upper flow channel 11 is sealed by a sealing ring or a sealing glue.

[0020] Working principle: In actual use, the upper flow channel 11 and the lower flow channel 1 are made of die-cast aluminum, and the lower flow channel 1 is sealed by stir friction welding process; a heating pack 12 is placed between the upper flow channel 11 and the lower flow channel 1, and the upper flow channel 11, the lower flow channel 1, and the upper shell 13 are fixed and clamped on both sides by fixing blocks 3 and screws. The water flow part between the upper flow channel 11 and the lower flow channel 1 is sealed with a sealing ring or sealant, and the upper flow channel 11, the lower flow channel 1, and the upper shell 13 are fixed by bolts. After fixation, the controller 16 controls the PTC to be energized and the heat is transferred to the upper and lower water tanks. The water flows in the water tank, and the water will be quickly heated to heat the entire vehicle through the pipeline.

[0021] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A flat-plate high-pressure water-heating PTC heater assembly, comprising a lower flow channel (1), characterized in that: A lower flow channel (1), an upper flow channel (11) is provided at the top of the lower flow channel (1), a heating pack (12) is provided between the upper flow channel (11) and the lower flow channel (1), an upper shell (13) is provided at the top of the upper flow channel (11), an upper sealing plate (14) is provided at the top of the upper shell (13), a lower sealing plate (15) is provided at the bottom of the lower flow channel (1), one side of the upper sealing plate (14) is fixedly connected to a controller (16), and two symmetrically distributed fixing blocks (3) are fixedly installed on both sides of the lower flow channel (1), the upper flow channel (11) and the upper shell (13), and the fixing blocks (3) are fixed by screws.

2. A flat-plate high-pressure water-heating PTC heater assembly as claimed in claim 1, characterized in that: The bottom end of the heating pack (12) is fixedly connected to an insulating heat-conducting sheet (10), and the insulating heat-conducting sheet (10) is in contact with the lower flow channel (1).

3. A flat-plate high-pressure water-heating PTC heater assembly as claimed in claim 1, characterized in that: A plurality of evenly distributed fixing seats (31) are fixedly mounted on the other two sides of the lower flow channel (1), the upper flow channel (11) and the upper shell (13), and the fixing seats (31) are fixedly connected by screws.

4. A flat-plate high-pressure water-heating PTC heater assembly as claimed in claim 1, characterized in that: The upper flow channel (11) and the lower flow channel (1) are made of die-cast aluminum, and the lower flow channel (1) is sealed by a stir friction welding process.

5. A flat-plate high-pressure water-heating PTC heater assembly as claimed in claim 1, characterized in that: The upper sealing plate (14) on the upper flow channel (11) is sealed by a sealing ring or a sealing glue.

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