Automobile heater

Abstract

The utility model relates to the technical field of liquid heaters, in particular to an automobile heater which comprises a shell with an opening and a heating steel plate covering the opening of the shell. The first baffles which divide the flow channel into the U-shaped sub-flow channels which are arranged at equal intervals are arranged in the cavity, the first baffles are in a raised grain shape, and one end of each baffle extends into the U-shaped opening of the innermost first baffle, so that the flow direction of liquid can be effectively guided, bubbles can be effectively scattered, it is ensured that a heated steel plate is evenly heated, and the service life of the heated steel plate is prolonged. The heating efficiency is improved; and compared with the salient points, the height of the overflowing section of the first baffle is increased, so that the volume of liquid below the heating steel plate can be increased, and the situation of local blockage can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid heaters, in particular to an automobile heater. Background Art

[0002] In recent years, in the field of automotive heater technology, thick film heating flow channel design has begun to be widely used. After power is turned on, the steel plate generates heat, and the ethylene glycol aqueous solution is heated and brought to the passenger compartment through the coolant circuit, thereby achieving the purpose of heating. However, in the field where the space in the water flow channel is relatively limited, due to the unreasonable flow channel design (generally by designing several convex points in the center of the flow channel), bubbles are prone to accumulation, resulting in uneven local heating of the liquid under the heated steel plate, excessive heat of the heated steel plate, and low heat conduction efficiency; and the flow channel of the existing design has a too low flow cross-section, a small volume of the aqueous solution under the heated steel plate, poor local fluidity, and the possibility of blockage. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automobile heater which can effectively avoid uneven heating of the heated steel plate and local blockage.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A car heater comprises a shell with an opening and a heating steel plate covering the opening of the shell, a liquid inlet and a liquid outlet are provided on one side of the shell, a cavity for liquid to flow to heat the liquid is provided in the shell, a partition is also provided in the shell for dividing the cavity into a U-shaped flow channel, a distribution groove for evenly distributing the liquid to the flow channel is provided at the connection between the cavity and the liquid inlet, a buffer groove for accommodating the liquid to avoid the collision between the liquid and the liquid outlet causing a decrease in hydraulic pressure is provided at the connection between the cavity and the liquid outlet, the partition is located between the distribution groove and the buffer groove, a first baffle is provided in the cavity for dividing the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals, and the first baffle is in a wavy shape, one end of the baffle extends into the U-shaped opening of the first baffle located at the innermost part, the starting end of the first baffle is arranged in the cavity and a spacing is provided between the edge of the notch of the distribution groove, and the end of the first baffle is arranged in the cavity and a spacing is provided between the edge of the notch of the buffer groove.

[0006] Furthermore, the first baffle includes a first arc segment and two wavy segments, the first arc segment is located between the two wavy segments and opposite ends of the first arc segment are respectively connected to the two wavy segments.

[0007] Furthermore, arc-shaped protrusions are symmetrically provided on the opposite inner side walls of the cavity, the wave pattern segment includes a concave portion and a convex portion, the concave portion is located between the first arc-shaped segment and the convex portion, and the arc-shaped protrusions are arranged opposite to the concave portion of the wave pattern segment.

[0008] Furthermore, the distance between the arc-shaped protrusion and the recess is equal to the width of the sub-channel.

[0009] Furthermore, one end of the convex portion away from the concave portion extends outward to form an inclined portion, and the inclined portion is inclined in a direction away from the partition, and the inclination angle of the inclined portion of the first baffle located innermost is greater than the inclination angles of the inclined portions of the remaining first baffles.

[0010] Furthermore, two second arc segments are provided in the cavity, the first arc segment is located between the two second arc segments, and a spacing is provided between the two second arc segments and the first arc segment.

[0011] Furthermore, the middle position of the first arc segment of the innermost first baffle protrudes toward one end of the partition, and the middle positions of the first arc segments of the remaining first baffles all protrude toward one end of the partition.

[0012] Furthermore, the partition includes an elliptical portion and two straight portions, the elliptical portion is located between the two straight portions and is respectively connected to the two straight portions, one of the straight portions of the partition extends into the U-shaped opening of the first baffle, and the elliptical portion and the other straight portion of the partition are located outside the U-shaped opening of the first baffle and are both located between the distribution groove and the buffer groove.

[0013] The beneficial effects of the utility model are:

[0014] The heater designed in this scheme is configured to have a first baffle in the cavity to divide the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals, and the first baffle is in a wavy shape, with one end of the baffle extending into the U-shaped opening of the innermost first baffle, thereby effectively guiding the flow direction of the liquid and effectively breaking up the bubbles to ensure that the heated steel plate is heated evenly and improve the heating efficiency; and the first baffle has a larger flow cross-sectional height than the convex point, thereby increasing the volume of the liquid under the heated steel plate and reducing local blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the automobile heater of the utility model;

[0016] Figure 2 It is a partial structural schematic diagram of the automobile heater of the utility model;

[0017] Description of labels:

[0018] 1. Shell; 2. Heating steel plate; 3. Liquid inlet; 4. Liquid outlet; 5. Cavity; 51. First baffle; 511. First arc segment; 512. Wave segment; 5121. Concave portion; 5122. Protrusion; 5123. Inclined portion; 52. Arc-shaped protrusion; 53. Second arc segment; 6. Partition; 61. Elliptical portion; 62. Straight portion; 7. Distribution groove; 8. Buffer groove. DETAILED DESCRIPTION

[0019] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0020] Please refer to Figure 1 , the technical solution adopted by the utility model is:

[0021] A car heater comprises a shell with an opening and a heating steel plate covering the opening of the shell, a liquid inlet and a liquid outlet are provided on one side of the shell, a cavity for liquid to flow to heat the liquid is provided in the shell, a partition is also provided in the shell for dividing the cavity into a U-shaped flow channel, a distribution groove for evenly distributing the liquid to the flow channel is provided at the connection between the cavity and the liquid inlet, a buffer groove for accommodating the liquid to avoid the collision between the liquid and the liquid outlet causing a decrease in hydraulic pressure is provided at the connection between the cavity and the liquid outlet, the partition is located between the distribution groove and the buffer groove, a first baffle is provided in the cavity for dividing the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals, and the first baffle is in a wavy shape, one end of the baffle extends into the U-shaped opening of the first baffle located at the innermost part, the starting end of the first baffle is arranged in the cavity and a spacing is provided between the edge of the notch of the distribution groove, and the end of the first baffle is arranged in the cavity and a spacing is provided between the edge of the notch of the buffer groove.

[0022] From the above description, it can be seen that the beneficial effects of the utility model are:

[0023] The heater designed in this scheme is configured to have a first baffle in the cavity to divide the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals, and the first baffle is in a wavy shape, with one end of the baffle extending into the U-shaped opening of the innermost first baffle, thereby effectively guiding the flow direction of the liquid and effectively breaking up the bubbles to ensure that the heated steel plate is heated evenly and improve the heating efficiency; and the first baffle has a larger flow cross-sectional height than the convex point, thereby increasing the volume of the liquid under the heated steel plate and reducing local blockage.

[0024] Furthermore, the first baffle includes a first arc segment and two wavy segments, the first arc segment is located between the two wavy segments and opposite ends of the first arc segment are respectively connected to the two wavy segments.

[0025] From the above description, it can be seen that the wave shape can more effectively avoid the accumulation of bubbles under the heated steel plate.

[0026] Furthermore, arc-shaped protrusions are symmetrically provided on the opposite inner side walls of the cavity, the wave pattern segment includes a concave portion and a convex portion, the concave portion is located between the first arc-shaped segment and the convex portion, and the arc-shaped protrusions are arranged opposite to the concave portion of the wave pattern segment.

[0027] It can be seen from the above description that the arc-shaped protrusion and the surrounding concave portion form a flow channel with a locally uniform width, thereby ensuring the stability of the flow rate.

[0028] It can be seen from the above description that by symmetrically arranging protrusions on the opposite inner walls of the cavity, the flow direction of the liquid can be effectively guided and the bubbles can be effectively dispersed to ensure that the heated steel plate is heated evenly and improve the heating efficiency.

[0029] Furthermore, the distance between the arc-shaped protrusion and the recess is equal to the width of the sub-channel.

[0030] From the above description, it can be seen that the spacing between the arc-shaped protrusion and the concave portion is equal to the width of the sub-channel, which is more conducive to ensuring the stability of the flow rate, thereby ensuring the constancy of the surface temperature of the heated steel plate.

[0031] Furthermore, one end of the convex portion away from the concave portion extends outward to form an inclined portion, and the inclined portion is inclined in a direction away from the partition, and the inclination angle of the inclined portion of the first baffle located innermost is greater than the inclination angles of the inclined portions of the remaining first baffles.

[0032] From the above description, it can be seen that by extending the inclined portion outward at one end of the convex portion away from the concave portion, the flow direction of the liquid can be more effectively guided, the bubbles can be effectively dispersed, and the heated steel plate can be further ensured to be heated evenly, thereby further improving the heating efficiency.

[0033] Furthermore, two second arc segments are provided in the cavity, the first arc segment is located between the two second arc segments, and a spacing is provided between the two second arc segments and the first arc segment.

[0034] It can be seen from the above description that the provision of the second arc segment can more effectively prevent the accumulation of bubbles under the heated steel plate.

[0035] Furthermore, the middle position of the first arc segment of the innermost first baffle protrudes toward one end of the partition, and the middle positions of the first arc segments of the remaining first baffles all protrude toward one end of the partition.

[0036] From the above description, it can be seen that since bubbles are easily accumulated due to sudden changes in flow velocity in the fluid turning area, by setting the above structure, the flow direction of the liquid can be more effectively guided, the bubbles can be effectively dispersed, and the heated steel plate can be further ensured to be heated evenly, thereby further improving the heating efficiency.

[0037] Furthermore, the partition includes an elliptical portion and two straight portions, the elliptical portion is located between the two straight portions and is respectively connected to the two straight portions, one of the straight portions of the partition extends into the U-shaped opening of the first baffle, and the elliptical portion and the other straight portion of the partition are located outside the U-shaped opening of the first baffle and are both located between the distribution groove and the buffer groove.

[0038] It can be seen from the above description that setting the partition into the above shape can match the arc shape of the periphery, play a turbulent role, and promote the dispersion of bubbles.

[0039] Please refer to Figure 1 and Figure 2 As shown, the first embodiment of the utility model is:

[0040] Please refer to Figure 1 and Figure 2 A car heater comprises a shell 1 with an opening and a heating steel plate 2 covering the opening of the shell 1, a liquid inlet 3 and a liquid outlet 4 are provided on one side of the shell 1, a cavity 5 for liquid to flow to heat the liquid is provided in the shell 1, a partition 6 for dividing the cavity 5 into a U-shaped flow channel is also provided in the shell 1, a distribution groove 7 for evenly distributing the liquid to the flow channel is provided at the connection between the cavity 5 and the liquid inlet 3, a buffer groove 8 for accommodating the liquid to avoid the collision between the liquid and the liquid outlet 4 and causing the hydraulic pressure to be reduced is provided at the connection between the cavity 5 and the liquid outlet 4, and the partition 6 is located between the distribution groove 7 and the buffer groove The grooves 8 are provided in the cavity 5, and the first baffle 51 is provided to divide the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals. The height of the first baffle 51 is 6.5 mm, the width of the sub-flow channel is 5.5 mm, and the first baffle 51 is in a wavy shape. One end of the partition 6 extends to the U-shaped opening of the innermost first baffle 51. The starting end of the first baffle 51 is arranged in the cavity 5 and a spacing (3 mm) is provided between the first baffle 51 and the groove edge of the distribution groove 7. The end of the first baffle 51 is arranged in the cavity 5 and a spacing (3 mm) is provided between the first baffle 51 and the groove edge of the buffer groove 8.

[0041] Please refer to Figure 1 The heating steel plate 2 is covered on the shell 1 to form a cavity 5, a distribution groove 7 and a buffer groove 8.

[0042] Please refer to Figure 2The first baffle 51 includes a first arc segment 511 and two wave segments 512 , the first arc segment 511 is located between the two wave segments 512 and the opposite ends of the first arc segment 511 are respectively connected to the two wave segments 512 .

[0043] Please refer to Figure 2 , arc-shaped protrusions 52 are symmetrically provided on the relative inner walls of the cavity 5, the wave pattern segment 512 includes a recessed portion 5121 and a protruding portion 5122, the recessed portion 5121 is located between the first arc-shaped segment 511 and the protruding portion 5122, and the arc-shaped protrusions 52 are arranged opposite to the recessed portion 5121 of the wave pattern segment 512.

[0044] Please refer to Figure 2 , the distance between the arc-shaped protrusion 52 and the recess 5121 is equal to the width of the sub-channel.

[0045] Please refer to Figure 2 One end of the convex portion 5122 away from the concave portion 5121 extends outward to form an inclined portion 5123, and the inclined portion 5123 is inclined in a direction away from the partition 6, and the inclination angle of the inclined portion 5123 of the first baffle plate 51 located in the innermost part is greater than the inclination angles of the inclined portions 5123 of the remaining first baffle plates 51, the inclination angle of the inclined portion 5123 of the innermost first baffle plate 51 is 30°, and the inclination angles of the inclined portions 5123 of the remaining first baffle plates 51 are 20°.

[0046] Please refer to Figure 2 Two second arc segments 53 are further provided in the cavity 5 , the first arc segment 511 is located between the two second arc segments 53 , and a spacing is provided between the two second arc segments 53 and the first arc segment 511 .

[0047] Please refer to Figure 2 The middle position of the first arc segment 511 of the innermost first baffle 51 protrudes toward one end of the partition 6, and the middle positions of the first arc segments 511 of the remaining first baffles 51 all protrude toward one end away from the partition 6.

[0048] Please refer to Figure 2 The partition 6 includes an elliptical portion 61 and two straight portions 62, the elliptical portion 61 is located between the two straight portions 62 and is respectively connected to the two straight portions 62, one of the straight portions 62 of the partition 6 extends into the U-shaped opening of the first baffle 51, and the elliptical portion 61 and the other straight portion 62 of the partition 6 are located outside the U-shaped opening of the first baffle 51 and are both located between the distribution groove 7 and the buffer groove 8.

[0049] In summary, the utility model provides a car heater, which divides the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals by arranging a first baffle in the cavity, and the first baffle is in a wavy shape, and one end of the baffle extends to the U-shaped opening of the innermost first baffle, which can effectively guide the flow direction of the liquid and effectively break up the bubbles to ensure that the heating steel plate is heated evenly and improve the heating efficiency; and the first baffle has a larger flow cross-section height than the convex point, which can increase the volume of the liquid under the heating steel plate, thereby reducing local blockage.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A car heater, comprising a shell with an opening and a heating steel plate covering the opening of the shell, a liquid inlet and a liquid outlet being provided on one side of the shell, a cavity for liquid to flow to heat the liquid being provided in the shell, a partition for dividing the cavity into a U-shaped flow channel being provided in the shell, a distribution groove for evenly distributing the liquid to the flow channel being provided at the connection between the cavity and the liquid inlet, a buffer groove for accommodating the liquid to avoid the collision between the liquid and the liquid outlet causing a decrease in hydraulic pressure being provided at the connection between the cavity and the liquid outlet, the partition being located between the distribution groove and the buffer groove, and characterized in that: A first baffle is provided in the cavity to divide the flow channel into a plurality of U-shaped sub-flow channels arranged at equal intervals, and the first baffle is in a wavy shape, one end of the partition extends into the U-shaped opening of the innermost first baffle, the starting end of the first baffle is arranged in the cavity and a distance is provided between the edge of the groove of the distribution groove, and the end of the first baffle is arranged in the cavity and a distance is provided between the edge of the groove of the buffer groove.

2. The vehicle heater according to claim 1, characterized in that: The first baffle includes a first arc segment and two wavy segments. The first arc segment is located between the two wavy segments, and opposite ends of the first arc segment are respectively connected to the two wavy segments.

3. The vehicle heater according to claim 2, characterized in that: The opposite inner side walls of the cavity are symmetrically provided with arc-shaped protrusions, the wave pattern segment includes a concave portion and a convex portion, the concave portion is located between the first arc-shaped segment and the convex portion, and the arc-shaped protrusion is arranged opposite to the concave portion of the wave pattern segment.

4. The automobile heater according to claim 3, characterized in that: The distance between the arc-shaped protrusion and the concave portion is equal to the width of the sub-channel.

5. The automobile heater according to claim 3, characterized in that: One end of the convex portion away from the concave portion extends outward to form an inclined portion, and the inclined portion is inclined in a direction away from the partition, and the inclined angle of the inclined portion of the first baffle located innermost is greater than the inclined angles of the inclined portions of the remaining first baffles.

6. The automobile heater according to claim 2, characterized in that: Two second arc segments are further provided in the cavity, the first arc segment is located between the two second arc segments, and a spacing is provided between the two second arc segments and the first arc segment.

7. The vehicle heater according to claim 2, characterized in that: The middle position of the first arc segment of the innermost first baffle protrudes toward one end of the partition, and the middle positions of the first arc segments of the remaining first baffles protrude toward one end of the partition.

8. The vehicle heater according to claim 1, characterized in that: The partition includes an elliptical portion and two straight portions, the elliptical portion is located between the two straight portions and is respectively connected to the two straight portions, one of the straight portions of the partition extends into the U-shaped opening of the first baffle, and the elliptical portion and the other straight portion of the partition are located outside the U-shaped opening of the first baffle and are both located between the distribution groove and the buffer groove.

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