Automotive heater

By designing two independent storage chambers and isolation assembly in the automotive heater, the damage caused by cavitation is solved, achieving a longer service life and higher heat conduction efficiency.

WO2025156576A1PCT designated stage expired Publication Date: 2025-07-31NINGGUO HAOCHENG AUTO ELECTRIC CO LTD
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Patent Information

Application Number
PCT/CN2024/106512
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-22
Filing Date
2024-07-19
Publication Date
2025-07-31

AI Technical Summary

Technical Problem

The interior of existing automobile heaters is prone to damage due to cavitation, resulting in a low service life and a safety hazard.

Method used

Two independent storage chamber structures are designed, and the bubbles can be quickly exported during the heating process. By providing isolation assembly and through-troughs in the housing, multiple runners are formed to improve heat conduction efficiency and prevent turbulence.

Benefits of technology

It effectively prevents damage to the heating parts and the inner wall of the shell, improves service life and eliminates safety hazards, and improves heat conduction efficiency and working efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automotive heater, comprising: a housing (1), wherein a first storage chamber (2) and a second storage chamber (3) are provided in the housing (1), a liquid inlet pipe (4) for communicating the first storage chamber (2) with the outside and a liquid outlet pipe (5) for communicating the second storage chamber (3) with the outside are provided on the housing (1), and one or more openings (8) for communicating the first storage chamber (2) and the second storage chamber (3) are formed in the housing (1); and a plurality of heating members (6), wherein the heating members (6) are mounted in the housing (1), and heat liquid flowing through the first storage chamber (2) and the second storage chamber (3). The automotive heater can effectively prevent the reduction in service life caused by cavitation.
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Description

A car heater

[0001] Cross-references

[0002] This application claims priority to Chinese Patent Application No. 2024100864731, filed on January 22, 2024, entitled “A Car Heater,” the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] The present application relates to the field of automobile parts, and in particular to an automobile heater. Background Art

[0004] In the existing technology, there are two main technical routes for vehicle air conditioning heating: air cooling and water cooling. Among them, the water cooling route has a problem that needs to be solved urgently. The existing heater is easily damaged by cavitation inside, resulting in a short service life.

[0005] Application Contents

[0006] Based on the above technical problems, the present application provides a car heater.

[0007] This application proposes a car heater, comprising:

[0008] A housing having a first receiving chamber and a second receiving chamber therein, a liquid inlet pipe connecting the first receiving chamber to the outside world and a liquid outlet pipe connecting the second receiving chamber to the outside world being opened on the housing, and one or more openings connecting the first receiving chamber and the second receiving chamber being opened in the housing;

[0009] A plurality of heating elements are installed in the shell and heat the liquid flowing through the first receiving chamber and the second receiving chamber.

[0010] Among them, the shell is equipped with an isolation assembly that divides the storage space in the shell into a first storage chamber and a second storage chamber. The isolation assembly is reserved with multiple through grooves connecting the first storage chamber and the second storage chamber. Multiple heating elements are embedded in the multiple through grooves one by one to form a blockage for the multiple through grooves. Part of the heating element is located in the first storage chamber, and part is located in the second storage chamber.

[0011] Among them, adjacent heating elements form first flow channels connected to the liquid inlet pipe in the first storage chamber, and adjacent heating elements form second flow channels connected to the liquid outlet pipe in the second storage chamber. Multiple first flow channels are connected to multiple second flow channels in a one-to-one correspondence through multiple openings.

[0012] The shell has a first inner wall and a second inner wall located inside the shell, and the heating element has a first outer wall and a second outer wall opposite to each other. The first outer wall is close to the first inner wall, and the second outer wall is close to the second inner wall.

[0013] The heating element is provided with a plurality of first heat-conducting fins located in the first flow channel, and the heating element is provided with a plurality of second heat-conducting fins located in the second flow channel.

[0014] Among them, the isolation assembly includes multiple first-type plate parts, and a through groove is reserved between adjacent first-type plate parts. The first-type plate part is formed by the first-type plate part A and the first-type plate part B respectively installed on two adjacent heating elements.

[0015] The first type of plate body is made of a heat-conducting material and is provided with a plurality of third heat-conducting fins.

[0016] In which, the isolation assembly includes at least two second-type plate parts, a second-type plate part is installed on the heating element adjacent to the third inner wall in the shell, and the second-type plate part is abutted against the third inner wall; another second-type plate part is installed on the heating element adjacent to the fourth inner wall opposite to the third inner wall in the shell, and the second-type plate part is abutted against the fourth inner wall.

[0017] The second type of plate body is made of a heat-conducting material and has a plurality of fourth heat-conducting fins on the second type of plate body.

[0018] The isolation assembly includes a third type plate body portion, which is in contact with the inner wall of the shell to cut off the communication between the liquid inlet pipe and the liquid outlet pipe.

[0019] Among them, the third type of plate body has several first type diversion plates for diverting the liquid flowing into the first receiving chamber from the liquid inlet pipe to multiple first flow channels; the third type of plate body has several second type diversion plates for merging the liquid diverted from multiple second flow channels into the liquid outlet pipe.

[0020] Among them, the third type of plate body forms a bond with the end wall of multiple heating elements close to the liquid inlet pipe, the third type of plate body forms a bond with the end wall of multiple first type plate bodies close to the liquid inlet pipe, and the third type of plate body forms a bond with the end wall of two second type plate bodies close to the liquid inlet pipe.

[0021] The shell includes an outer shell with one end open and an end cover fixedly assembled on the outer shell to seal the open end of the outer shell. The end cover is provided with multiple installation grooves, and multiple heating elements are fixedly embedded in the multiple installation grooves one by one to seal the installation grooves.

[0022] Wherein, the liquid inlet pipe and the liquid outlet pipe are both installed on the end wall of the shell opposite to the end cover.

[0023] The gaps reserved between the plurality of first-type plate bodies and the end covers for connecting the first receiving chamber and the second receiving chamber are openings.

[0024] Among them, the third type of plate body has multiple card slots, and multiple heating elements are correspondingly inserted into the card slots, and the heating elements are close to the end wall of the liquid inlet pipe and in contact with the bottom of the card slot.

[0025] When the car heater proposed in the present application is in use, the liquid enters the first storage chamber through the liquid inlet pipe, then enters the second storage chamber through the opening, and is finally discharged through the liquid outlet pipe. When in the first storage chamber and the second storage chamber, the liquid is heated. In the process of heating the liquid, bubbles are inevitable. If the bubbles adhere to the outer wall of the heating element or the inner wall of the shell, they will be locally dry-burned due to cavitation, which can easily damage the outer wall of the heating element or the inner wall of the shell, reduce the service life, and even cause safety hazards. In actual use of the present application, due to the design of two independent chambers of the first storage chamber and the second storage chamber, in actual use, the first storage chamber and the second storage chamber can be arranged in high and low positions, with the first storage chamber on the top and the second storage chamber on the bottom, so that the process of liquid entering the second storage chamber through the opening is an upward process, which effectively speeds up the bubbles to be quickly discharged through the liquid outlet pipe, thereby forming effective protection for the outer wall of the heating element and the inner wall of the shell, improving the service life, and eliminating safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a cross-sectional view of a specific embodiment of an automobile heater proposed in this application;

[0027] FIG2 is a cross-sectional view of another embodiment of an automobile heater proposed in this application;

[0028] FIG3 is a partial structural diagram of a specific embodiment of an automobile heater proposed in this application;

[0029] FIG4 is a partial structural diagram of another specific embodiment of an automobile heater proposed in this application;

[0030] FIG5 is a partial structural diagram of another specific embodiment of an automobile heater proposed in this application;

[0031] FIG6 is a view of a specific embodiment of a car heater proposed in this application. DETAILED DESCRIPTION

[0032] Below, the present application describes the technical solution in detail through specific embodiments, but it should be clearly stated that these embodiments are for illustration and are not to be construed as limiting the scope of the present application.

[0033] 1-2 , the present application proposes a car heater, comprising:

[0034] The shell 1 has a first receiving chamber 2 and a second receiving chamber 3. The shell 1 is provided with a liquid inlet pipe 4 connecting the first receiving chamber 2 with the outside world and a liquid outlet pipe 5 connecting the second receiving chamber 3 with the outside world. The shell 1 has one or more openings 8 connecting the first receiving chamber 2 and the second receiving chamber 3.

[0035] A plurality of heating elements 6 are installed in the housing 1 and heat the liquid flowing through the first receiving chamber 2 and the second receiving chamber 3 .

[0036] The liquid enters the first receiving chamber 2 through the liquid inlet pipe 4, then enters the second receiving chamber 3 through the opening 8, and is finally discharged through the liquid outlet pipe 5. When the liquid is in the first receiving chamber 2 and the second receiving chamber 3, the liquid is heated. In the process of heating the liquid, bubbles are inevitably generated. If the bubbles adhere to the outer wall of the heating element 6 or the inner wall of the shell 1, they will dry burn locally due to cavitation, which is very likely to damage the outer wall of the heating element 6 or the inner wall of the shell 1, reducing the service life and even causing safety hazards. In actual use, due to the design of the two independent chambers of the first receiving chamber 2 and the second receiving chamber 3, the first receiving chamber 2 and the second receiving chamber 3 can be arranged in a high and low position, with the first receiving chamber 2 on the top and the second receiving chamber 3 on the bottom, so that the process of the liquid entering the second receiving chamber 3 through the opening 8 is an upward process, which effectively speeds up the bubbles to be quickly discharged through the liquid outlet pipe 5, thereby forming effective protection for the outer wall of the heating element 6 and the inner wall of the shell 1, improving the service life and eliminating safety hazards.

[0037] Referring to Figures 3-4, the shell 1 is equipped with an isolation assembly 7 that divides the storage space in the shell 1 into a first storage chamber 2 and a second storage chamber 3. The isolation assembly 7 is reserved with multiple through grooves 74 connecting the first storage chamber 2 and the second storage chamber 3. Multiple heating elements 6 are embedded in the multiple through grooves 74 one by one to form a blockage for the multiple through grooves 74. Part of the heating element 6 is located in the first storage chamber 2, and part is located in the second storage chamber 3.

[0038] Adjacent heating elements 6 form first flow channels 21 in the first receiving chamber 2 that are all connected to the liquid inlet pipe 4, and adjacent heating elements 6 form second flow channels 31 in the second receiving chamber 2 that are all connected to the liquid outlet pipe 5. Multiple first flow channels 21 are connected to multiple second flow channels 31 in a one-to-one correspondence through multiple openings 8.

[0039] The liquid enters the first receiving chamber 2 through the liquid inlet pipe 4, and is then distributed to multiple first flow channels 21. Then, the liquid enters the multiple second flow channels 31 one by one from the multiple first flow channels 21, and then is collected and discharged from the liquid outlet pipe 5. Since there are heating elements 6 on both sides of the first flow channel 21 or the second flow channel 31, the heat conduction area of ​​the liquid flowing through the first flow channel 21 or the second flow channel 31 can be greatly increased, thereby improving the heat conduction efficiency. At the same time, the above design still has to be distributed into multiple streams of liquid, each going its own way, and heating evenly to improve the heat conduction efficiency, while effectively preventing turbulence, thereby improving work efficiency.

[0040] The shell 1 has a first inner wall 11 and a second inner wall 12 located inside the shell 1 . The heating element 6 has a first outer wall 61 and a second outer wall 62 opposite to each other. The first outer wall 61 is against the first inner wall 11 , and the second outer wall 62 is against the second inner wall 12 .

[0041] The heating element 6 has a plurality of first heat-conducting fins 63 located in the first flow channel 21 , and the heating element 6 has a plurality of second heat-conducting fins 64 located in the second flow channel 31 .

[0042] The presence of the second heat conducting fins 64 increases the heat conduction area of ​​the liquid, thereby improving the heat conduction efficiency.

[0043] The isolation assembly 7 includes multiple first-type plate parts 71, and a through groove 74 is reserved between adjacent first-type plate parts 71. The first-type plate parts 71 are formed by the first-type plate parts A7101 and the first-type plate parts B7102 respectively installed on two adjacent heating elements 6.

[0044] The first type plate portion 71 is made of a heat-conducting material and has a plurality of third heat-conducting fins 711 thereon.

[0045] The presence of the first type plate portion 71 increases the heat conduction area of ​​the liquid, thereby improving the heat conduction efficiency.

[0046] The isolation assembly 7 includes at least two second-type plate bodies 72. A second-type plate body portion 72 is installed on the heating element 6 adjacent to the third inner wall 13 in the shell 1, and the second-type plate body portion 72 is in contact with the third inner wall 13; another second-type plate body portion 72 is installed on the heating element 6 adjacent to the fourth inner wall 14 in the shell 1 opposite to the third inner wall 13, and the second-type plate body portion 72 is in contact with the fourth inner wall 14.

[0047] The second type plate portion 72 is made of a heat-conducting material and has a plurality of fourth heat-conducting fins 721 thereon.

[0048] The presence of the second type plate portion 72 increases the heat conduction area of ​​the liquid, thereby improving the heat conduction efficiency.

[0049] The isolation assembly 7 includes a third type plate portion 73 , which abuts against the inner wall of the housing 1 to cut off the communication between the liquid inlet pipe 4 and the liquid outlet pipe 5 .

[0050] The third type plate body 73 has a plurality of first type diversion plates 732 for diverting the liquid flowing into the first receiving chamber 2 from the liquid inlet pipe 4 to a plurality of first flow channels 21; the third type plate body 73 has a plurality of second type diversion plates 733 for merging the liquid diverted from the plurality of second flow channels 31 to the liquid outlet pipe 5.

[0051] The third type of plate body 73 forms a contact with the end wall of multiple heating elements 6 close to the liquid inlet pipe 4, the third type of plate body 73 forms a contact with the end wall of multiple first type plate bodies 71 close to the liquid inlet pipe 4, and the third type of plate body 73 forms a contact with the end wall of two second type plate bodies 72 close to the liquid inlet pipe 4.

[0052] 6 , the housing 1 includes an outer shell 101 with one end open and an end cover 102 fixedly assembled to the outer shell 101 to seal the open end of the outer shell 101 . The end cover 102 is provided with a plurality of mounting grooves 1021 , and a plurality of heating elements 6 are fixedly embedded in the plurality of mounting grooves 1021 in a one-to-one correspondence to form a seal for the mounting grooves 1021 .

[0053] The liquid inlet pipe 4 and the liquid outlet pipe 5 are both installed on the wall of the housing 101 opposite to the end cover 102 .

[0054] The gap between the multiple first-type plate bodies 71 and the end cover 102 that connects the first receiving chamber 2 and the second receiving chamber 3 is the opening 8. The liquid enters the first receiving chamber 2 from the liquid inlet pipe 4 at the end away from the end cover 102, then flows to the end close to the end cover 102, and then enters the second receiving chamber 3 through the opening 8 close to the end of the end cover 102, and then stays in the liquid outlet pipe 5 at the end away from the end cover 102 and then flows out, so that the liquid's travel in the shell 1 reaches the maximum, that is, the heating time is maximized, thereby improving the thermal efficiency.

[0055] 5 , the third type plate portion 73 has a plurality of slots 731 , into which the plurality of heating elements 6 are correspondingly inserted, and the heating elements 6 are close to the end wall of the liquid inlet pipe 4 and in contact with the bottom of the slot 731 .

[0056] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. An automotive heater, comprising: A housing (1) having a first storage chamber (2) and a second storage chamber (3) therein. An inlet pipe (4) is provided on the housing (1) to communicate the first storage chamber (2) with the outside, and an outlet pipe (5) is provided to communicate the second storage chamber (3) with the outside. One or more openings (8) are provided in the housing (1) to communicate the first storage chamber (2) with the second storage chamber (3); A plurality of heating elements (6) installed in the housing (1) for heating the liquid flowing through the first storage chamber (2) and the second storage chamber (3).

2. The vehicle heater according to claim 1, wherein, An isolation assembly (7) is assembled in the housing (1) to divide the storage space in the housing (1) into the first storage chamber (2) and the second storage chamber (3). A plurality of through grooves (74) communicating the first storage chamber (2) with the second storage chamber (3) are reserved on the isolation assembly (7). The plurality of heating elements (6) are respectively embedded in the plurality of through grooves (74) to block the plurality of through grooves (74). Part of the heating element (6) is located in the first storage chamber (2), and part is located in the second storage chamber (3).

3. The vehicle heater according to claim 2, wherein, Adjacent heating elements (6) form a first flow channel (21) in the first storage chamber (2) that is all communicated with the inlet pipe (4). Adjacent heating elements (6) form a second flow channel (31) in the second storage chamber (2) that is all communicated with the outlet pipe (5). The plurality of first flow channels (21) are respectively communicated with the plurality of second flow channels (31) through the plurality of openings (8).

4. The vehicle heater according to claim 3, wherein, The housing (1) has a first inner wall (11) and a second inner wall (12) located inside the housing (1). The heating element (6) has opposite first outer side walls (61) and second outer side walls (62). The first outer side wall (61) abuts against the first inner wall (11), and the second outer side wall (62) abuts against the second inner wall (12).

5. The vehicle heater according to claim 3, wherein, The heating element (6) has a number of first heat conducting fins (63) located in the first flow channel (21), and the heating element (6) has a number of second heat conducting fins (64) located in the second flow channel (31).

6. The vehicle heater according to claim 3, wherein, The isolation assembly (7) includes a plurality of first type plate portions (71). Through grooves (74) are reserved between adjacent first type plate portions (71). The first type plate portion (71) is formed by abutting a first type plate portion A (7101) and a first type plate portion B (7102) respectively installed on adjacent two heating elements (6).

7. The vehicle heater according to claim 6, wherein, The first type plate portion (71) is made of a heat conducting material, and the first type plate portion (71) has a number of third heat conducting fins (711).

8. The vehicle heater according to claim 6, wherein, The isolation assembly (7) includes at least two second type plate portions (72). One second type plate portion (72) is installed on the heating element (6) adjacent to the third inner wall (13) in the housing (1), and this second type plate portion (72) abuts against the third inner wall (13); Another second type plate portion (72) is installed on the heating element (6) adjacent to the fourth inner wall (14) opposite to the third inner wall (13) in the housing (1), and this second type plate portion (72) abuts against the fourth inner wall (14).

9. The vehicle heater according to claim 8, wherein, The second type of plate body part (72) is made of a heat-conducting material, and a plurality of fourth heat-conducting fins (721) are provided on the second type of plate body part (72).

10. The vehicle heater according to claim 8, wherein, The isolation assembly (7) includes a third type of plate body part (73), and the third type of plate body part (73) abuts against the inner wall of the housing (1) to block the conduction between the liquid inlet pipe (4) and the liquid outlet pipe (5).

11. The vehicle heater according to claim 10, wherein, A plurality of first type of flow dividing plates (732) for dividing the liquid flowing into the first receiving chamber (2) from the liquid inlet pipe (4) and distributing it to a plurality of first flow channels (21) are provided on the third type of plate body part (73); a plurality of second type of flow dividing plates (733) for combining the liquids flowing out from the plurality of second flow channels (31) and flowing them into the liquid outlet pipe (5) are provided on the third type of plate body part (73).

12. The vehicle heater according to claim 10, wherein, The third type of plate body part (73) forms a butt joint with the end walls of the plurality of heating elements (6) close to the liquid inlet pipe (4), the third type of plate body part (73) forms a butt joint with the end walls of the plurality of first type of plate body parts (71) close to the liquid inlet pipe (4), and the third type of plate body part (73) forms a butt joint with the end walls of the two second type of plate body parts (72) close to the liquid inlet pipe (4).

13. The vehicle heater according to claim 2, wherein, The housing (1) includes an outer shell (101) with one end open and an end cover (102) fixedly assembled to the outer shell (101) to block the open end of the outer shell (101). A plurality of installation grooves (1021) are provided on the end cover (102), and the plurality of heating elements (6) are fixedly inserted into the plurality of installation grooves (1021) one by one and block the installation grooves (1021).

14. The vehicle heater according to claim 13, wherein, Both the liquid inlet pipe (4) and the liquid outlet pipe (5) are installed on the end wall of the outer shell (101) opposite to the end cover (102).

15. The vehicle heater according to claim 13, wherein, The gap reserved between the plurality of first type of plate body parts (71) and the end cover (102) and communicating the first receiving chamber (2) and the second receiving chamber (3) is the opening (8).

16. The vehicle heater according to claim 10, wherein, A plurality of clamping grooves (731) are provided on the third type of plate body part (73), and the plurality of heating elements (6) are snapped into the clamping grooves (731) one by one, and the end walls of the heating elements (6) close to the liquid inlet pipe (4) are in butt joint with the bottoms of the clamping grooves (731).

Citation Information

Patent Citations

  • Heat exchanger

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  • Water heating PTC heater and assembling method thereof

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  • Cooling liquid heater and new energy automobile

    CN116766874A

  • Automobile heater

    CN117944433A

  • Automobile electric heater

    CN215244252U