Flat plate type water heating PTC (Positive Temperature Coefficient) vehicle heater for new energy automobile cover plate

Abstract

The utility model discloses a new energy automobile cover plate flat plate type water heating PTC vehicle heater which comprises a heating part, a heat dissipation part and a fixing part, water inlet and outlet pipes communicated with the heat dissipation part are arranged at the diagonal positions of the outer side of the fixing part respectively, and the heat dissipation part is attached to the outer side of the heating surface of the heating part. The fixing part is fixed on the outer side of the heat dissipation part, and the heating part comprises a PTC sheet; the heat dissipation component comprises an upper base and a lower base, and the upper base and the lower base are located on the two sides of the PTC piece respectively. The heating component further comprises copper electrodes arranged between the two sides of the PTC piece and the upper base and the lower base. And heat-conducting silicon films are respectively arranged between the copper electrodes and the heat dissipation component. The beneficial effects are that the heat-conducting silicon film is arranged to play a role in buffering and insulation and prevent damage; the baffles and the spoilers increase the flow dividing effect, the protruding blocks on the baffles and the spoilers slow down the water flow speed, and efficiency is improved; a sealing gasket is arranged, so that the sealing performance is ensured and water flow cannot seep.

Description

Technical Field

[0001] The utility model relates to the field of PTC heaters for new energy vehicles, in particular to a flat-plate water-heating PTC vehicle heater for the cover plate of a new energy vehicle. Background Art

[0002] At present, as a core key component of the air conditioner and battery thermal management system of new energy vehicles, the water-heating PTC heater has attracted more and more attention. Compared with the traditional air-heating heater, it has the characteristics of high heating efficiency, good comfort, and flexible vehicle layout, and is widely used by major vehicle manufacturers.

[0003] Chinese Patent CN221340124U discloses a flat-plate water-heating heater for new energy vehicles, which includes a PTC heating element and a heat dissipation component attached to the outer heating surface of the PTC heating element; the heat dissipation component includes a radiator profile with a comb-shaped cross-section composed of a bottom plate and a plurality of fins arranged on the bottom plate; the top of each fin is covered with a cover plate, and the cover plate is welded and sealed to the top edge of each fin to form a plurality of parallel flow channels between the cover plate and the bottom plate; both ends of the flow channels are closed by a pair of end cover plates, and water inlet and outlet pipes communicating with the internal flow channels are arranged on the end cover plates. The utility model has the advantages of simple structure, easy manufacturing, good use reliability, and low cost.

[0004] The above patent uses an aluminum profile radiator with a conventional structure, combined with welded cover plates and end cover plates. The production processes of these base materials are mature, with high batch manufacturing efficiency and low cost; the aluminum profile has good heat conduction and heat dissipation performance. Since it is produced by extrusion equipment, there is no risk of pores and looseness in manufacturing, and the risk of insulation failure of the heating core due to leakage is eliminated. Although the risk of insulation failure of the heating core due to leakage is eliminated by using the aluminum profile radiator, the aluminum profile has low hardness and is easy to oxidize, and is prone to deformation or damage caused by resonance. Summary of the Invention

[0005] Object of the Invention: To solve the above technical problems, the utility model provides a flat-plate water-heating PTC vehicle heater for the cover plate of a new energy vehicle. By setting a heat-conducting silicone film, the safety is increased, and it plays a buffering and insulating role to prevent damage or deformation caused by vibration.

[0006] Technical solution: A flat water - heating PTC vehicle heater for a new - energy vehicle cover plate, comprising a heating component, a heat - dissipating component, and a fixing component. The diagonal positions on the outer side of the fixing component are respectively provided with water inlet and outlet pipes communicating with the heat - dissipating component. The heat - dissipating component is attached to the outer side of the heating surface of the heating component. The fixing component is fixed on the outer side of the heat - dissipating component. The heating component includes a PTC sheet; the heat - dissipating component includes an upper base and a lower base, and the upper base and the lower base are respectively located on both sides of the PTC sheet; the heating component further includes copper electrodes arranged between the PTC sheet and the upper base and the lower base on both sides; heat - conducting silicone sheets are respectively arranged between the copper electrodes and the heat - dissipating component; the fixing component includes an upper cover plate and a lower cover plate, the upper cover plate is fixedly connected to the upper base, and the lower cover plate is fixedly connected to the lower base.

[0007] By setting the heat - conducting silicone sheets for heat conduction, it changes the situation of using conventional metals for heat conduction in the past heaters, thus reducing the weight of the heater; using the physical properties of the heat - conducting silicone sheets can play a buffering and insulating role to prevent damage caused by vibration.

[0008] Preferred option: In order to be able to shunt the heat - dissipating medium and facilitate the directional flow of the heat - dissipating medium in the flow channel, at least one group of baffles are respectively arranged on the side surfaces of the heat - dissipating component close to the fixing component on the same side. Any one of the baffles includes a first baffle and a second baffle. One end of the first baffle is fixedly connected to the side end - cover on one side of the fixing component, and the other end is not connected and left with a gap; one end of the second baffle is fixedly connected to the side end - cover of the fixing component where the first baffle is not connected, and the other end is not connected and left with a gap; the first baffle and the second baffle are arranged at intervals and cooperate to form a flow channel.

[0009] By providing a flow channel, and the flow channel is in a multi - segment reciprocating turning shape, it can shunt the heat - dissipating medium and facilitate the directional flow of the heat - dissipating medium in the flow channel.

[0010] Preferred option: In order to increase the heat - dissipation efficiency, raised portions are arranged on both sides of the baffle, a spoiler plate lower than the height of the baffle is arranged between the first baffle and the second baffle, and convex blocks are arranged on both sides of the spoiler plate.

[0011] By arranging the raised portions, the flow velocity of the fluid can be slowed down and the heat - dissipation efficiency can be increased. Arranging the spoiler plate can further shunt the heat - dissipating medium, and arranging convex blocks on both sides of the spoiler plate can slow down the flow velocity of the fluid and increase the heat - dissipation efficiency.

[0012] Preferred option: In order to ensure the sealing of the flow channel, gaskets fixed by bolts are arranged between the upper cover plate and the upper base, between the upper base and the lower base, and between the lower base and the lower cover plate.

[0013] By arranging the gaskets, the sealing of the flow channel is ensured, and the water flow will not seep out to cause insulation failure.

[0014] Preferred option: To ensure the uniformity of materials, the gasket is made of silicone rubber or EPDM material.

[0015] Using the same specification for the gasket can ensure the uniformity of materials.

[0016] Preferred option: To match the power of the copper electrode with that of the PTC chip, the area of the copper electrode changes synchronously with the area of the PTC chip.

[0017] By setting the area of the copper electrode to change synchronously with the area of the PTC chip, the power of the copper electrode is made consistent with that of the PTC chip, and the heat dissipation power is also consistent.

[0018] Beneficial effects: By setting the heat-conducting silicone film, the safety is increased, and it plays a buffering and insulating role to prevent damage or deformation caused by vibration; by setting the baffle and the spoiler, the diversion effect of the water flow is increased, and bumps are provided on the baffle and the spoiler to slow down the water flow speed and increase the heat dissipation efficiency; by setting the gasket, the tightness of the flow channel is ensured, and the water flow will not seep out and cause insulation failure. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0020] Figure 1 It is a three-dimensional view of the disassembly and distribution of the components of the present invention;

[0021] Figure 2 It is a three-dimensional view of the disassembly and distribution of the components of the present invention;

[0022] Figure 3 It is a three-dimensional view of the top-layer flow channel of the present invention;

[0023] Figure 4 It is a distribution diagram of the top-layer flow channel of the present invention. Detailed Embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0026] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0027] As Figure 1 and 2 As shown, a flat-plate water-warming PTC vehicle heater for a new energy vehicle cover plate includes a heating component 1, a heat dissipation component 2, and a fixing component 3. The diagonal positions on the outside of the fixing component 3 are respectively provided with water inlet and outlet pipes 61 communicating with the heat dissipation component 2. The heat dissipation component 2 is attached to the outside of the heating surface of the heating component 1. The fixing component 3 is fixed to the outside of the heat dissipation component 2. The heating component 1 includes a PTC sheet 101. The heat dissipation component 2 includes an upper base 201 and a lower base 202, and the upper base 201 and the lower base 202 are respectively located on both sides of the PTC sheet 101. The heating component 1 further includes copper electrodes 102 arranged between the two sides of the PTC sheet 101 and the upper base 201 and the lower base 202. Heat conductive silicone sheets 4 are respectively arranged between the copper electrodes 102 and the heat dissipation component 2. The fixing component 3 includes an upper cover plate 301 and a lower cover plate 302, and the upper cover plate 301 is fixedly connected to the upper base 201, and the lower cover plate 302 is fixedly connected to the lower base 202.

[0028] By providing heat conduction through the heat conductive silicone sheets 4, the situation of using conventional metal heat conduction in the past heaters is changed, so that the weight of the heater is reduced. Utilizing the physical properties of the heat conductive silicone sheets 4, it can play a buffering and insulating role to prevent damage caused by vibration.

[0029] As Figure 3 and 4As shown in the figure, in order to be able to shunt the heat dissipation medium and facilitate the directional flow of the heat dissipation medium in the flow channel 6, at least three groups of baffles 5 are respectively arranged on the side surface of the heat dissipation component 2 close to the fixing component 3 on the same side. Any one of the baffles 5 includes a first baffle 51 and a second baffle 52. One end of the first baffle 51 is fixedly connected to the side end cover on one side of the fixing component 3, and the other end is not connected and left with a gap; one end of the second baffle 52 is fixedly connected to the side end cover of the fixing component 3 where the first baffle 51 is not connected, and the other end is not connected and left with a gap; the first baffle 51 and the second baffle 52 are arranged at intervals and cooperate to form the flow channel 6.

[0030] By providing the flow channel 6, and the flow channel 6 is in a multi-segment reciprocating turning shape, the heat dissipation medium can be shunted, which is convenient for the directional flow of the heat dissipation medium in the flow channel 6.

[0031] In order to increase the heat dissipation efficiency, raised portions 53 are provided on both sides of the baffle 5, a spoiler 54 lower than the height of the baffle 5 is provided between the first baffle 51 and the second baffle 52, and bumps 55 are provided on both sides of the spoiler 54.

[0032] By providing the raised portions 53, the fluid flow rate can be slowed down and the heat dissipation efficiency can be increased. By providing the spoiler 54, the heat dissipation medium can be further shunted, and by providing the bumps 55 on both sides of the spoiler 54, the fluid flow rate can be slowed down and the heat dissipation efficiency can be increased.

[0033] In order to ensure the sealing of the flow channel, gaskets 7 fixedly connected by bolts are provided between the upper cover plate 301 and the upper base 201, between the upper base 201 and the lower base 202, and between the lower base 202 and the lower cover plate 302.

[0034] By providing the gasket 7, the sealing of the flow channel 6 is ensured, and the water flow will not seep out, causing insulation failure.

[0035] In order to ensure the unity of the materials, the gasket 7 is made of silicone rubber or EPDM material.

[0036] By using the gasket 7 of the same specification, the unity of the materials can be ensured.

[0037] In order to match the power of the copper electrode 102 with the power of the PTC chip, the area of the copper electrode 102 changes synchronously with the area of the PTC chip 101.

[0038] By setting the area of the copper electrode 102 to change synchronously with the area of the PTC chip 101, the power of the copper electrode 102 is made consistent with the power of the PTC chip 101, and the heat dissipation power is consistent.

[0039] In the present specification, the various embodiments are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. For the devices disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple. For related parts, reference can be made to the description in the method section.

[0040] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather will be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flat plate type water heating PTC vehicle heater for a new energy vehicle cover plate, comprising a heating component (1), a heat dissipation component (2), and a fixing component (3). The inlet and outlet water pipes (61) communicating with the heat dissipation component (2) are respectively arranged at the diagonal positions on the outer side of the fixing component (3). The heat dissipation component (2) is attached to the outer side of the heating surface of the heating component (1), and the fixing component (3) is fixed to the outer side of the heat dissipation component (2), characterized in that: The heating component (1) includes a PTC sheet (101); the heat dissipation component (2) includes an upper base (201) and a lower base (202), and the upper base (201) and the lower base (202) are respectively located on both sides of the PTC sheet (101); the heating component (1) further includes copper electrodes (102) disposed between the two sides of the PTC sheet (101) and the upper base (201) and the lower base (202); heat conductive silicone sheets (4) are respectively provided between the copper electrodes (102) and the heat dissipation component (2); the fixing component (3) includes an upper cover plate (301) and a lower cover plate (302), the upper cover plate (301) is fixedly connected to the upper base (201), and the lower cover plate (302) is fixedly connected to the lower base (202).

2. The flat-plate water-heating PTC vehicle heater for the cover plate of a new energy vehicle according to claim 1, wherein: At least 3 groups of baffles (5) are respectively provided on the side surfaces of the heat dissipation component (2) close to the fixing component (3) on the same side. Any of the baffles (5) includes a first baffle (51) and a second baffle (52). One end of the first baffle (51) is fixedly connected to the side end cover on one side of the fixing component (3), and the other end is not connected and left with a gap; one end of the second baffle (52) is fixedly connected to the side end cover of the fixing component (3) where the first baffle (51) is not connected, and the other end is not connected and left with a gap; the first baffle (51) and the second baffle (52) are distributed at intervals and cooperate to form a flow channel (6).

3. The flat-panel water heating PTC vehicle heater for the cover plate of a new energy vehicle according to claim 2, wherein: Raised portions (53) are provided on both sides of the baffle (5), a spoiler (54) lower than the height of the baffle (5) is provided between the first baffle (51) and the second baffle (52), and bumps (55) are provided on both sides of the spoiler (54).

4. The flat-plate water heating PTC vehicle heater for a new energy vehicle cover plate according to claim 1, characterized in that: Sealing gaskets (7) fixed by bolts are provided between the upper cover plate (301) and the upper base (201), between the upper base (201) and the lower base (202), and between the lower base (202) and the lower cover plate (302).

5. The flat-plate water-heating PTC vehicle heater for a new energy vehicle cover plate according to claim 4, wherein: The sealing gasket (7) is made of silicone rubber or EPDM material.

6. The flat water heating PTC vehicle heater for the cover plate of new energy vehicles according to claim 1, characterized in that: The area of the copper electrode (102) changes synchronously with the area of the PTC sheet (101).

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