Automobile liquid heater

Abstract

The utility model relates to the technical field of automobile liquid heating, in particular to an automobile liquid heater which comprises a shell, a supporting body and two heating plates are arranged in the shell, the two heating plates are arranged on the two opposite side faces of the supporting body respectively, the two opposite side faces of the supporting body are sunken inwards to form snakelike flow guide grooves, and the heating plates are arranged on the two opposite side faces of the supporting body. A liquid inlet pipe and a liquid outlet pipe are arranged on the outer side wall of the shell, the liquid inlet ends of the flow guide grooves are communicated with the liquid inlet pipe, the liquid outlet ends of the flow guide grooves are communicated with the liquid outlet pipe, and a first flow channel and a second flow channel are formed between the two heating plates and the two flow guide grooves respectively. And the thickness of the heating plate is small, so that the product size is reduced, the cooling liquid can obtain a better heating effect, fins are reduced structurally, and the manufacturing difficulty and risk are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive liquid heating, and particularly relates to an automotive liquid heater. Background Art

[0002] Automotive liquid heaters are used to heat the antifreeze, which is the circulating medium of the automotive engine, and directly transfer the heat to the in-vehicle radiator and defroster to provide heat sources for the low-temperature start of the engine and heating in the vehicle cabin. Currently, most thick-film resistance heaters use a single flat heating plate for heating. For example, in the patent with the application number "202222888659.8" and the patent name "An Automotive Liquid Heater", when the planar area cannot meet the design requirements, it is necessary to increase the overall size of the product, and additional fins are required to generate turbulence, which increases the manufacturing difficulty. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a liquid heater that can obtain better heating effects while reducing the overall size of the product.

[0004] To solve the above technical problem, the technical solution adopted by the utility model is as follows:

[0005] An automotive liquid heater includes a housing. A support body and two heating plates are arranged inside the housing. The two heating plates are respectively arranged on opposite side surfaces of the support body. Opposite side surfaces of the support body are both recessed inward to form serpentine flow guiding grooves. An inlet pipe and an outlet pipe are arranged on the outer side wall of the housing. The inlet end of the flow guiding groove is communicated with the inlet pipe, and the outlet end of the flow guiding groove is communicated with the outlet pipe. First flow channels and second flow channels are respectively formed between the two heating plates and the two flow guiding grooves.

[0006] Further, a plurality of protrusions are arranged on the groove wall of the flow guiding groove, and the plurality of protrusions are respectively arranged at positions close to the corners of the flow guiding groove.

[0007] Further, the protruding height of the plurality of protrusions gradually decreases in the direction from the corner close to the flow guiding groove to the corner far from the flow guiding groove.

[0008] Further, the plurality of protrusions are arranged at equal intervals along the bending path of the flow guiding groove.

[0009] Further, a plurality of flow disturbing columns are arranged on the groove wall of the flow guiding groove, and the plurality of flow disturbing columns are respectively arranged at the corners of the flow guiding groove.

[0010] Further, the plurality of flow disturbing columns are arranged at equal intervals along the bending path of the flow guiding groove.

[0011] The beneficial effects of the utility model are as follows:

[0012] In this solution, two heating plates are provided and are respectively arranged on the opposite side surfaces of the support body. The opposite side surfaces of the support body are both recessed inward to form serpentine diversion channels. An inlet pipe and an outlet pipe are provided on the outer side wall of the housing. The inlet end of the diversion channel is communicated with the inlet pipe, and the outlet end of the diversion channel is communicated with the outlet pipe. A first flow channel and a second flow channel are respectively formed between the two heating plates and the two diversion channels. By adopting the method of double-layer circulating coolant, the heating area is effectively increased, and the thickness of the heating plate is small. In this way, not only the size of the product is reduced, but also the coolant can obtain a better heating effect. At the same time, in terms of structure, the fins are reduced, and the manufacturing difficulty and risk are lowered. Brief Description of the Drawings

[0013] Figure 1 is an exploded view of the vehicle liquid heater of the present utility model;

[0014] Figure 2 is a structural schematic diagram of the support body of the vehicle liquid heater of the present utility model;

[0015] Label Description:

[0016] 1. Housing; 2. Support body; 201. Diversion channel; 2011. Turbulence post; 3. Heating plate. Detailed Embodiment

[0017] To describe in detail the technical content, achieved purpose and effects of the present utility model, the following is described in conjunction with the embodiments and with reference to the drawings.

[0018] Please refer to Figure 1 , the technical solution adopted by the present utility model is:

[0019] A vehicle liquid heater includes a housing. A support body and two heating plates are arranged inside the housing. The two heating plates are respectively arranged on the opposite side surfaces of the support body. The opposite side surfaces of the support body are both recessed inward to form serpentine diversion channels. An inlet pipe and an outlet pipe are provided on the outer side wall of the housing. The inlet end of the diversion channel is communicated with the inlet pipe, and the outlet end of the diversion channel is communicated with the outlet pipe. A first flow channel and a second flow channel are respectively formed between the two heating plates and the two diversion channels.

[0020] It can be seen from the above description that the beneficial effects of the present utility model are as follows:

[0021] In this solution, two heating plates are provided and are respectively arranged on the opposite side surfaces of the support body. The opposite side surfaces of the support body are both recessed inward to form serpentine diversion channels. An inlet pipe and an outlet pipe are provided on the outer side wall of the housing. The inlet end of the diversion channel is communicated with the inlet pipe, and the outlet end of the diversion channel is communicated with the outlet pipe. A first flow channel and a second flow channel are formed between the two heating plates and the two diversion channels respectively. By adopting the double-layer circulation of the coolant, the heating area is effectively increased, and the thickness of the heating plate is small. In this way, not only the size of the product is reduced, but also the coolant can obtain a better heating effect. At the same time, in terms of structure, the fins are reduced, and the manufacturing difficulty and risk are lowered.

[0022] Further, a plurality of protrusions are provided on the groove wall of the diversion channel, and the plurality of protrusions are respectively arranged at positions close to the corners of the diversion channel.

[0023] As can be seen from the above description, by providing a plurality of protrusions on the groove wall of the diversion channel, and the plurality of protrusions are respectively arranged at positions close to the corners of the diversion channel, the liquid flow at the corners of the diversion channel can be disturbed, the speed of the liquid flow at the corners of the diversion channel is accelerated, so that the liquid is heated more evenly, and the heating effect is further improved.

[0024] Further, the protruding height of the plurality of protrusions gradually decreases from the direction close to the corner of the diversion channel to the direction away from the corner of the diversion channel.

[0025] As can be seen from the above description, since the speed of the liquid flow is slower closer to the corner of the diversion channel, the protruding height of the protrusions gradually decreases from the direction close to the corner of the diversion channel to the direction away from the corner of the diversion channel. In this way, the speed of the liquid flow at the corners of the diversion channel can be accelerated, so that the liquid is heated more evenly, and the heating effect is further improved.

[0026] Further, the plurality of protrusions are arranged at equal intervals along the bending path of the diversion channel.

[0027] Further, a plurality of flow disturbance columns are provided on the groove wall of the diversion channel, and the plurality of flow disturbance columns are respectively arranged at the corners of the diversion channel.

[0028] As can be seen from the above description, by providing flow disturbance columns to disturb the liquid flow, the liquid is heated more evenly, and the heating effect is further improved.

[0029] Further, the plurality of flow disturbance columns are arranged at equal intervals along the bending path of the diversion channel.

[0030] Please refer to Figure 1 and Figure 2 As shown, Embodiment 1 of the present utility model is:

[0031] Please refer toFigure 1 , an automotive liquid heater, comprising a housing 1. Inside the housing 1, there is a support body 2 and two heating plates 3. The two heating plates 3 are respectively arranged on the opposite side surfaces of the support body 2. On the opposite side surfaces of the support body 2, inward depressions are formed to form serpentine flow guiding grooves 201. On the outer side wall of the housing 1, there are an inlet pipe and an outlet pipe. The inlet end of the flow guiding groove 201 is communicated with the inlet pipe, and the outlet end of the flow guiding groove 201 is communicated with the outlet pipe. Between the two heating plates 3 and the two flow guiding grooves 201 respectively, a first flow path and a second flow path are formed.

[0032] On the groove wall of the flow guiding groove 201, there are a number of protrusions, and the number of protrusions are respectively arranged at positions close to the corners of the flow guiding groove 201.

[0033] The protruding height of the number of protrusions gradually decreases in the direction from the corner close to the flow guiding groove 201 to the corner far from the flow guiding groove 201.

[0034] The width range of the flow guiding groove 201 is 10 mm - 15 mm, preferably 12 mm, and the protruding height of the protrusion is 4 mm - 5 mm, preferably 4.5 mm.

[0035] The number of protrusions are arranged at equal intervals along the bending path of the flow guiding groove 201.

[0036] Please refer to Figure 2 , on the groove wall of the flow guiding groove 201, there are a number of flow disturbing columns 2011, and the number of flow disturbing columns 2011 are respectively arranged at the corners of the flow guiding groove 201.

[0037] The number of flow disturbing columns 2011 are arranged at equal intervals along the bending path of the flow guiding groove 201.

[0038] Liquid respectively flows into the first flow path and the second flow path through the inlet pipe. On the heating plate 3, there is a thick film heating layer (the thick film heating circuits on the thick film heating layer are connected in parallel). The heating plate 3 is heated through the thick film heating layer. The two heating plates 3 respectively heat the liquid in the first flow path and the second flow path. The heated liquid respectively flows into the outlet pipe from the outlet ports of the first flow path and the second flow path, and then flows out from the outlet pipe, directly transferring the heat to the in-vehicle radiator and defroster, providing heat sources for the low-temperature start of the engine and the heating of the vehicle interior.

[0039] In summary, a liquid heater for an automobile provided by the present utility model sets two heating plates, and the two heating plates are respectively arranged on the opposite side surfaces of the support body. The opposite side surfaces of the support body are both recessed inward to form serpentine flow guiding grooves. An inlet pipe and an outlet pipe are arranged on the outer side wall of the housing. The inlet end of the flow guiding groove is communicated with the inlet pipe, and the outlet end of the flow guiding groove is communicated with the outlet pipe. A first flow channel and a second flow channel are formed between the two heating plates and the two flow guiding grooves respectively. By adopting the double-layer circulation of the coolant, the heating area is effectively increased, and the thickness of the heating plate is small. In this way, not only the size of the product is reduced, but also the coolant can obtain a better heating effect. At the same time, in terms of structure, the fins are reduced, and the manufacturing difficulty and risk are lowered.

[0040] The above are only the embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in the relevant technical field, shall be equally included in the patent protection scope of the present utility model.

Claims

1. An automotive liquid heater, characterized in that, It includes a housing, inside which there is a support body and two heating plates. The two heating plates are respectively arranged on the opposite side surfaces of the support body. The opposite side surfaces of the support body are both recessed inward to form serpentine flow guiding grooves. An inlet pipe and an outlet pipe are arranged on the outer side wall of the housing. The inlet end of the flow guiding groove is communicated with the inlet pipe, and the outlet end of the flow guiding groove is communicated with the outlet pipe. A first flow channel and a second flow channel are respectively formed between the two heating plates and the two flow guiding grooves.

2. The vehicle liquid heater according to claim 1, characterized in that, A plurality of protrusions are arranged on the groove wall of the flow guiding groove, and the plurality of protrusions are respectively arranged at positions close to the corners of the flow guiding groove.

3. The automotive liquid heater according to claim 2, characterized in that, The protruding heights of the plurality of protrusions gradually decrease in the direction from the corner close to the flow guiding groove to the corner far from the flow guiding groove.

4. The motor vehicle liquid heater according to claim 2, characterized in that, The plurality of protrusions are arranged at equal intervals along the bending path of the flow guiding groove.

5. The automotive liquid heater according to claim 1, characterized in that, A plurality of flow disturbing columns are arranged on the groove wall of the flow guiding groove, and the plurality of flow disturbing columns are respectively arranged at the corners of the flow guiding groove.

6. The automotive liquid heater according to claim 5, characterized in that, The plurality of flow disturbing columns are arranged at equal intervals along the bending path of the flow guiding groove.

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