Film heater of electric compressor

Abstract

The utility model relates to the technical field of heaters, in particular to an electric compressor film heater which comprises a heating steel plate and a heating middle shell, a containing cavity is formed in the heating middle shell, a plurality of independent cavities are formed in the containing cavity, and the heating steel plate covers an opening of the containing cavity and seals the opening. A plurality of independent and sealed flow channel cavities are formed between the heating steel plate and the cavities respectively, cooling liquid can flow in the independent flow channel cavities through the structural design, interference among different flow channels is avoided, the heating efficiency is improved, and the independent flow channel cavities are formed to heat more devices. Meanwhile, the sealed runner cavity can prevent the cooling liquid from leaking, and the reliability of the heater is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, and in particular to an electric compressor membrane heater. Background Technology

[0002] New energy vehicles face a significant challenge in winter heating because they lack the waste heat from traditional internal combustion engines. Currently, common heating methods include PTC (positive temperature coefficient) heaters and heat pump systems, but both have limitations.

[0003] Although PTC heaters are simple in structure and low in cost, they consume a lot of energy, which will significantly shorten the vehicle's driving range; while heat pump systems are relatively energy efficient, their heating capacity will decrease significantly in low-temperature environments, and they may even fail to work properly.

[0004] In addition, existing electric compressor membrane heaters have some shortcomings in their structural design, such as unreasonable flow channel layout, which leads to uneven coolant flow and affects heating efficiency; and insufficient heat dissipation area, which cannot fully transfer heat to the coolant. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an electric compressor membrane heater that allows the coolant to flow in an independent flow channel cavity, avoiding interference between different flow channels and improving heating efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An electric compressor membrane heater includes a heating steel plate and a heating middle shell. The heating middle shell has a cavity inside, and the cavity has multiple independent chambers. The heating steel plate covers the opening of the cavity and seals the opening. The heating steel plate and the multiple chambers form multiple independent and sealed flow channels.

[0008] Furthermore, there are two flow channel cavities. Each flow channel cavity has an independent water inlet groove at one end and an independent water outlet groove at the opposite end of each flow channel cavity. The water inlet grooves of the two flow channel cavities are located on the same side, and the water outlet grooves of the two flow channel cavities are located on the same side.

[0009] Furthermore, the two flow channel cavities are a first flow channel cavity and a second flow channel cavity, wherein the volume of the first flow channel cavity is greater than the volume of the second flow channel cavity;

[0010] The first flow channel cavity is provided with a first water channel region, and the second flow channel cavity is provided with a second water channel region. The first water channel region and the second water channel region are respectively located between their respective water inlet groove and water outlet groove. The volume of the first water channel region is greater than the volume of the second water channel region.

[0011] Furthermore, the first water channel area is provided with a plurality of first heat dissipation protrusion groups, and the second water channel area is provided with a plurality of second heat dissipation protrusion groups.

[0012] Multiple first heat dissipation protrusion groups are arranged horizontally at intervals along one end of the first flow channel cavity to the opposite end of the first flow channel cavity, forming multiple first flow channels;

[0013] The second flow channel cavity is also provided with a plurality of second heat dissipation protrusion groups. The plurality of second heat dissipation protrusion groups are arranged at intervals along one end of the second flow channel cavity toward the opposite end of the second flow channel cavity to form a plurality of second flow channels.

[0014] Furthermore, the first flow channel cavity is also provided with a first water inlet area and a first water outlet area. The first water channel area is located between the first water inlet area and the first water outlet area. The water inlet groove in the first flow channel cavity is located on the first water inlet area, and the water outlet groove in the first flow channel cavity is located on the first water outlet area. The heights of the first water inlet area and the first water outlet area protruding from the bottom surface of the first flow channel cavity are both less than the heights of the first water channel area protruding from the bottom surface of the first flow channel cavity.

[0015] Furthermore, an inclined first water inlet guide block is provided in the water inlet groove inside the first flow channel cavity, and the inclination height of the first water inlet guide block gradually increases from one end inside the first flow channel cavity to the opposite end.

[0016] An inclined first water outlet guide block is provided in the water outlet groove inside the first flow channel cavity. The inclination height of the first water outlet guide block gradually increases from one end of the first flow channel cavity to the other end.

[0017] Furthermore, a gap is provided between the side of the heating steel plate near the first heat dissipation boss group and the first heat dissipation boss group.

[0018] Furthermore, the second flow channel cavity is also provided with a second water inlet area and a second water outlet area. The second water channel area is located between the second water inlet area and the second water outlet area. The water inlet groove in the second flow channel cavity is located on the second water inlet area, and the water outlet groove in the second flow channel cavity is located on the second water outlet area. The height of the second water inlet area and the second water outlet area protruding from the bottom surface of the second flow channel cavity is less than the height of the second water channel area protruding from the bottom surface of the second flow channel cavity.

[0019] Furthermore, an inclined second water inlet guide block is provided in the water inlet groove inside the second flow channel cavity, and the inclination height of the second water inlet guide block gradually increases from one end inside the second flow channel cavity to the opposite end.

[0020] An inclined second water outlet guide block is provided in the water outlet groove inside the second flow channel cavity. The inclination height of the second water outlet guide block gradually increases from one end of the second flow channel cavity to the other end.

[0021] Furthermore, a gap is provided between the side of the heating steel plate near the second heat dissipation boss assembly and the second heat dissipation boss assembly.

[0022] The beneficial effects of this utility model are as follows:

[0023] This design incorporates multiple independent cavities within a container, with a heating steel plate covering and sealing the opening of each cavity. The heating steel plate forms independent and sealed flow channels between each cavity. This structural design allows the coolant to flow within these independent flow channels, avoiding interference between different channels, improving heating efficiency, and enabling the heating of more equipment through multiple independent flow channels. Simultaneously, the sealed flow channels prevent coolant leakage, ensuring the reliability of the heater. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the heating shell and heating steel plate of the electric compressor membrane heater of this utility model;

[0025] Figure 2 This is a schematic diagram of the heating shell structure of an electric compressor membrane heater according to this utility model;

[0026] Label Explanation:

[0027] 1. Heated middle shell; 11. Cavity; 111. First flow channel cavity; 1111. Water inlet groove; 1112. Water outlet groove; 1113. First water channel area; 1114. First heat dissipation boss assembly; 1115. First water inlet area; 1116. First water outlet area; 1117. First flow channel; 1118. First water inlet guide block; 1119. First water outlet guide block; 112. Second flow channel cavity; 1121. Second water channel area; 1122. Second heat dissipation boss assembly; 1123. Second water inlet area; 1124. Second water outlet area; 1125. Second flow channel; 1126. Second water inlet guide block; 1127. Second water outlet guide block; 2. Heated steel plate. Detailed Implementation

[0028] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0029] Please refer to Figure 1 as well as Figure 2 An electric compressor membrane heater includes a heating steel plate and a heating middle shell. The heating middle shell has a cavity inside, and the cavity has multiple independent chambers. The heating steel plate covers the opening of the cavity and seals the opening. The heating steel plate and the multiple chambers form multiple independent and sealed flow channels.

[0030] As can be seen from the above description, the beneficial effects of this utility model are as follows:

[0031] This design incorporates multiple independent cavities within a container, with a heating steel plate covering and sealing the opening of each cavity. The heating steel plate forms independent and sealed flow channels between each cavity. This structural design allows the coolant to flow within these independent flow channels, avoiding interference between different channels, improving heating efficiency, and enabling the heating of more equipment through multiple independent flow channels. Simultaneously, the sealed flow channels prevent coolant leakage, ensuring the reliability of the heater.

[0032] Furthermore, there are two flow channel cavities. Each flow channel cavity has an independent water inlet groove at one end and an independent water outlet groove at the opposite end of each flow channel cavity. The water inlet grooves of the two flow channel cavities are located on the same side, and the water outlet grooves of the two flow channel cavities are located on the same side.

[0033] As described above, the design of two flow channels allows for parallel flow of coolant, increasing the coolant flow rate and improving heating efficiency. Simultaneously, the inlet and outlet grooves within each flow channel are located on different sides, enabling the coolant to flow through the entire flow channel, forming a longer and more tortuous flow path. This helps the coolant to be distributed more evenly throughout the heating area, preventing localized overheating or underheating, improving overall heating efficiency, and also preventing the possibility of incorrect assembly of other components.

[0034] Furthermore, the two flow channel cavities are a first flow channel cavity and a second flow channel cavity, wherein the volume of the first flow channel cavity is greater than the volume of the second flow channel cavity;

[0035] The first flow channel cavity is provided with a first water channel region, and the second flow channel cavity is provided with a second water channel region. The first water channel region and the second water channel region are respectively located between their respective water inlet groove and water outlet groove. The volume of the first water channel region is greater than the volume of the second water channel region.

[0036] Furthermore, the first water channel area is provided with a plurality of first heat dissipation protrusion groups, and the second water channel area is provided with a plurality of second heat dissipation protrusion groups.

[0037] Multiple first heat dissipation protrusion groups are arranged horizontally at intervals along one end of the first flow channel cavity to the opposite end of the first flow channel cavity, forming multiple first flow channels;

[0038] The second flow channel cavity is also provided with a plurality of second heat dissipation protrusion groups. The plurality of second heat dissipation protrusion groups are arranged at intervals along one end of the second flow channel cavity toward the opposite end of the second flow channel cavity to form a plurality of second flow channels.

[0039] As can be seen from the above description, the arrangement of the first heat dissipation boss group and the second heat dissipation boss group increases the contact area between the coolant and the heated steel plate, thereby improving the heat transfer efficiency. The different arrangements of the first and second flow channels can be optimized according to the shape of the flow channel cavity and the flow characteristics of the coolant, so that the coolant flows more evenly in the flow channel, further improving the heating efficiency.

[0040] Furthermore, the first flow channel cavity is also provided with a first water inlet area and a first water outlet area. The first water channel area is located between the first water inlet area and the first water outlet area. The water inlet groove in the first flow channel cavity is located on the first water inlet area, and the water outlet groove in the first flow channel cavity is located on the first water outlet area. The heights of the first water inlet area and the first water outlet area protruding from the bottom surface of the first flow channel cavity are both less than the heights of the first water channel area protruding from the bottom surface of the first flow channel cavity.

[0041] As can be seen from the above description, this height difference design allows the coolant to form a certain pressure difference when entering and exiting the first water channel area, which promotes the flow of coolant, reduces dead zones, and improves heating efficiency.

[0042] Furthermore, an inclined first water inlet guide block is provided in the water inlet groove inside the first flow channel cavity, and the inclination height of the first water inlet guide block gradually increases from one end inside the first flow channel cavity to the opposite end.

[0043] An inclined first water outlet guide block is provided in the water outlet groove inside the first flow channel cavity. The inclination height of the first water outlet guide block gradually increases from one end of the first flow channel cavity to the other end.

[0044] As can be seen from the above description, the inclined design of the first inlet guide block and the first outlet guide block can guide the flow direction of the coolant, so that the coolant enters and flows out of the first water channel area more evenly, avoids the formation of eddies in the inlet groove and outlet groove of the coolant, reduces flow resistance, and improves heating efficiency.

[0045] Furthermore, a gap is provided between the side of the heating steel plate near the first heat dissipation boss group and the first heat dissipation boss group.

[0046] As can be seen from the above description, this spacing ensures smooth flow of coolant between the first heat dissipation bosses, preventing coolant blockage at the first heat dissipation bosses, and also increases the contact time between coolant and heated steel plate, thus improving heat transfer efficiency.

[0047] Furthermore, the second flow channel cavity is also provided with a second water inlet area and a second water outlet area. The second water channel area is located between the second water inlet area and the second water outlet area. The water inlet groove in the second flow channel cavity is located on the second water inlet area, and the water outlet groove in the second flow channel cavity is located on the second water outlet area. The height of the second water inlet area and the second water outlet area protruding from the bottom surface of the second flow channel cavity is less than the height of the second water channel area protruding from the bottom surface of the second flow channel cavity.

[0048] As can be seen from the above description, this height difference design allows the coolant to form a certain pressure difference when entering and exiting the first water channel area, which promotes the flow of coolant, reduces dead zones, and improves heating efficiency.

[0049] Furthermore, an inclined second water inlet guide block is provided in the water inlet groove inside the second flow channel cavity, and the inclination height of the second water inlet guide block gradually increases from one end inside the second flow channel cavity to the opposite end.

[0050] An inclined second water outlet guide block is provided in the water outlet groove inside the second flow channel cavity. The inclination height of the second water outlet guide block gradually increases from one end of the second flow channel cavity to the other end.

[0051] As can be seen from the above description, the inclined design of the second inlet guide block and the second outlet guide block can guide the flow direction of the coolant, so that the coolant enters and flows out of the second water channel area more evenly, avoids the formation of eddies in the inlet groove and the outlet groove of the coolant, reduces flow resistance, and improves heating efficiency.

[0052] Furthermore, a gap is provided between the side of the heating steel plate near the second heat dissipation boss assembly and the second heat dissipation boss assembly.

[0053] As can be seen from the above description, this height difference design allows the coolant to form a certain pressure difference when entering and exiting the second water channel area, which promotes the flow of coolant, reduces dead zones, and improves heating efficiency.

[0054] Please refer to Figure 1 and Figure 2 As shown, Embodiment 1 of this utility model is as follows:

[0055] Please refer to Figure 1 and Figure 2 An electric compressor membrane heater includes a heating steel plate 2 and a heating middle shell 1. The heating middle shell 1 has a cavity 11 inside, and the cavity 11 has multiple independent chambers. The heating steel plate 2 covers the opening of the cavity 11 and seals the opening. The heating steel plate 2 forms multiple independent and sealed flow channels with the multiple chambers respectively.

[0056] Please refer to Figure 2 The number of flow channel cavities is two. Each flow channel cavity has an independent water inlet groove 1111 at one end and an independent water outlet groove 1112 at the opposite end of each flow channel cavity. The water inlet grooves 1111 of the two flow channel cavities are located on the same side, and the water outlet grooves 1112 of the two flow channel cavities are located on the same side.

[0057] The outer wall of the heating shell 1 is also connected to two water inlet pipes and two water outlet pipes. The two water inlet pipes and the two water inlet grooves 1111 are connected and communicate with each other, and the two water outlet pipes and the two water outlet grooves 1112 are connected and communicate with each other.

[0058] Please refer to Figure 1 and Figure 2 The two flow channel cavities are a first flow channel cavity 111 and a second flow channel cavity 112, and the volume of the first flow channel cavity 111 is greater than the volume of the second flow channel cavity 112.

[0059] The first flow channel cavity 111 is provided with a first water channel region 1113, and the second flow channel cavity 112 is provided with a second water channel region 1121. The first water channel region 1113 and the second water channel region 1121 are respectively located between their respective water inlet groove 1111 and water outlet groove 1112. The volume of the first water channel region 1113 is greater than the volume of the second water channel region 1121.

[0060] Please refer to Figure 1 and Figure 2 The first water channel region 1113 is provided with a plurality of first heat dissipation protrusion groups 1114, and the second water channel region 1121 is provided with a plurality of second heat dissipation protrusion groups 1122.

[0061] Multiple first heat dissipation protrusions 1114 are arranged horizontally at intervals along one end of the first flow channel cavity 111 towards the opposite end of the first flow channel cavity 111, forming multiple first flow channels 1117;

[0062] Please refer to Figure 1 and Figure 2The second flow channel cavity 112 is also provided with a plurality of second heat dissipation protrusion groups 1122. The plurality of second heat dissipation protrusion groups 1122 are arranged at intervals along one end of the second flow channel cavity 112 toward the opposite end of the second flow channel cavity 112, forming a plurality of second flow channels 1125.

[0063] Please refer to Figure 2 The first heat dissipation protrusion group 1114 and the second heat dissipation protrusion group 1122 are both composed of multiple equally spaced strip protrusions.

[0064] Please refer to Figure 1 and Figure 2 The first flow channel cavity 111 is further provided with a first water inlet area 1115 and a first water outlet area 1116. The first water channel area 1113 is located between the first water inlet area 1115 and the first water outlet area 1116. The water inlet groove 1111 in the first flow channel cavity 111 is located on the first water inlet area 1115. The water outlet groove 1112 in the first flow channel cavity 111 is located on the first water outlet area 1116. The heights of the first water inlet area 1115 and the first water outlet area 1116 protruding from the bottom surface of the first flow channel cavity 111 are both less than the heights of the first water channel area 1113 protruding from the bottom surface of the first flow channel cavity 111.

[0065] Please refer to Figure 1 and Figure 2 An inclined first water inlet guide block 1118 is provided in the water inlet groove 1111 inside the first flow channel cavity 111. The inclination height of the first water inlet guide block 1118 gradually increases from one end inside the first flow channel cavity 111 to the opposite end inside the first flow channel cavity 111.

[0066] An inclined first water outlet guide block 1119 is provided in the water outlet groove 1112 inside the first flow channel cavity 111. The inclination height of the first water outlet guide block 1119 gradually increases from one end to the other end inside the first flow channel cavity 111.

[0067] The heating steel plate 2 has a gap between its side near the first heat dissipation boss group 1114 and the first heat dissipation boss group 1114.

[0068] Please refer to Figure 1 and Figure 2The second flow channel cavity 112 is further provided with a second water inlet area 1123 and a second water outlet area 1124. The second water channel area 1121 is located between the second water inlet area 1123 and the second water outlet area 1124. The water inlet groove 1111 in the second flow channel cavity 112 is located on the second water inlet area 1123, and the water outlet groove 1112 in the second flow channel cavity 112 is located on the second water outlet area 1124. The height of the second water inlet area 1123 and the second water outlet area 1124 protruding from the bottom surface of the second flow channel cavity 112 is less than the height of the second water channel area 1121 protruding from the bottom surface of the second flow channel cavity 112.

[0069] Please refer to Figure 1 and Figure 2 An inclined second water inlet guide block 1126 is provided in the water inlet groove 1111 inside the second flow channel cavity 112. The inclination height of the second water inlet guide block 1126 gradually increases from one end inside the second flow channel cavity 112 to the opposite end inside the second flow channel cavity 112.

[0070] An inclined second water outlet guide block 1127 is provided in the water outlet groove 1112 inside the second flow channel cavity 112. The inclination height of the second water outlet guide block 1127 gradually increases from one end to the other end inside the second flow channel cavity 112.

[0071] The heating steel plate 2 has a gap between its side near the second heat dissipation boss group 1122 and the second heat dissipation boss group 1122.

[0072] In summary, the electric compressor membrane heater provided by this utility model has multiple independent cavities within a housing. A heating steel plate covers and seals the opening of the housing, forming multiple independent and sealed flow channels between the heating steel plate and the multiple cavities. This structural design allows the coolant to flow within the independent flow channels, avoiding interference between different flow channels, improving heating efficiency, and enabling multiple independent flow channels to heat more equipment. At the same time, the sealed flow channels prevent coolant leakage, ensuring the reliability of the heater.

[0073] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An electric compressor membrane heater, characterized in that, It includes a heating steel plate and a heating middle shell. The heating middle shell has a cavity inside, and the cavity has multiple independent chambers. The heating steel plate covers the opening of the cavity and seals the opening. The heating steel plate and the multiple chambers form multiple independent and sealed flow channels.

2. The electric compressor membrane heater according to claim 1, characterized in that, The number of flow channel cavities is two. Each flow channel cavity has an independent water inlet groove at one end and an independent water outlet groove at the opposite end of each flow channel cavity. The water inlet grooves of the two flow channel cavities are located on the same side, and the water outlet grooves of the two flow channel cavities are located on the same side.

3. The electric compressor membrane heater according to claim 2, characterized in that, The two flow channel cavities are a first flow channel cavity and a second flow channel cavity, wherein the volume of the first flow channel cavity is greater than the volume of the second flow channel cavity; The first flow channel cavity is provided with a first water channel region, and the second flow channel cavity is provided with a second water channel region. The first water channel region and the second water channel region are respectively located between their respective water inlet groove and water outlet groove. The volume of the first water channel region is greater than the volume of the second water channel region.

4. The electric compressor membrane heater according to claim 3, characterized in that, The first water channel area is provided with a plurality of first heat dissipation protrusion groups, and the second water channel area is provided with a plurality of second heat dissipation protrusion groups; Multiple first heat dissipation protrusion groups are arranged horizontally at intervals along one end of the first flow channel cavity to the opposite end of the first flow channel cavity, forming multiple first flow channels; The second flow channel cavity is also provided with a plurality of second heat dissipation protrusion groups. The plurality of second heat dissipation protrusion groups are arranged at intervals along one end of the second flow channel cavity toward the opposite end of the second flow channel cavity to form a plurality of second flow channels.

5. The electric compressor membrane heater according to claim 3, characterized in that, The first flow channel cavity is further provided with a first water inlet area and a first water outlet area. The first water channel area is located between the first water inlet area and the first water outlet area. The water inlet groove in the first flow channel cavity is located on the first water inlet area, and the water outlet groove in the first flow channel cavity is located on the first water outlet area. The height of the first water inlet area and the first water outlet area protruding from the bottom surface of the first flow channel cavity is less than the height of the first water channel area protruding from the bottom surface of the first flow channel cavity.

6. The electric compressor membrane heater according to claim 5, characterized in that, An inclined first water inlet guide block is provided in the water inlet groove inside the first flow channel cavity. The inclination height of the first water inlet guide block gradually increases from one end inside the first flow channel cavity to the opposite end. An inclined first water outlet guide block is provided in the water outlet groove inside the first flow channel cavity. The inclination height of the first water outlet guide block gradually increases from one end of the first flow channel cavity to the other end.

7. The electric compressor membrane heater according to claim 5, characterized in that, The heating steel plate has a gap between its side near the first heat dissipation boss group and the first heat dissipation boss group.

8. The electric compressor membrane heater according to claim 3, characterized in that, The second flow channel cavity is further provided with a second water inlet area and a second water outlet area. The second water channel area is located between the second water inlet area and the second water outlet area. The water inlet groove in the second flow channel cavity is located on the second water inlet area, and the water outlet groove in the second flow channel cavity is located on the second water outlet area. The height of the second water inlet area and the second water outlet area protruding from the bottom surface of the second flow channel cavity is less than the height of the second water channel area protruding from the bottom surface of the second flow channel cavity.

9. The electric compressor membrane heater according to claim 8, characterized in that, An inclined second water inlet guide block is provided in the water inlet groove inside the second flow channel cavity. The inclination height of the second water inlet guide block gradually increases from one end inside the second flow channel cavity to the opposite end. An inclined second water outlet guide block is provided in the water outlet groove inside the second flow channel cavity. The inclination height of the second water outlet guide block gradually increases from one end of the second flow channel cavity to the other end.

10. The electric compressor membrane heater according to claim 8, characterized in that, The heating steel plate has a gap between its side near the second heat dissipation boss assembly and the second heat dissipation boss assembly.

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