Vehicle cooling liquid heater
By setting up partitions and sealing rings in automotive coolant heaters, using multi-bend electric heating pipes and fluid conductor heaters, the problem of low heating efficiency of new energy vehicle heaters is solved, and more efficient heat conduction and More stable heating effect.
Patent Information
- Application Number
- CN202420495129.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-14
AI Technical Summary
The existing new energy vehicle heaters have low efficiency in heating coolant in low temperature environments and poor heat transfer efficiency, resulting in poor heating effect of the coolant.
Design a automotive coolant heater, which separates the coolant heating chamber by setting a partition and sealing ring in the main cavity of the shell, and uses a multi-bent electric heating tube to directly contact the coolant, thereby enhancing thermal conductivity and heat exchange Efficiency, while using fluid conductors and fins to increase the heat conduction area and reduce space occupation.
It effectively improves the heating effect of the coolant, enhances the heat conduction efficiency, reduces the volume of the heater, and ensures the stable operation and sealing of the controller, avoids liquid leakage.
Smart Images
Figure CN222157146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric heaters for automobiles, in particular to a vehicle coolant heater. Background Art
[0002] New energy vehicles have eliminated the internal combustion engine, so the air conditioner lacks a heat source. At the same time, the battery pack of new energy needs to be heated to a suitable temperature in a low temperature environment to ensure normal power supply and extend service life. Existing new energy vehicle heaters are generally arranged at the bottom of the coolant heating chamber, and the heating radiation speed is slow, which has a poor cooling effect, resulting in low efficiency in heating the coolant to the preset working temperature. The Chinese patent with publication number CN116766874A discloses a coolant heater and a new energy vehicle. The PTC ceramic heating units of the heater are arranged vertically. The PTC ceramics are designed to have a large longitudinal dimension and a low power density. Heat transfer needs to be carried out through thermal conductive glue and insulating pads, and the heat transfer efficiency is low. Utility Model Content
[0003] The main purpose of the utility model is to provide a vehicle coolant heater, which can improve the heating effect of the coolant and enhance the heat conduction efficiency.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a vehicle coolant heater, which comprises:
[0005] A shell body, wherein a cavity is provided in the shell body, a partition is provided in the cavity, the partition separates the cavity into a control cavity and a coolant heating cavity, and a liquid inlet and a liquid outlet communicating with the coolant heating cavity are provided on the shell wall of the shell body;
[0006] A sealing ring, which is arranged between the partition plate and the shell body and is used for sealing between the control chamber and the coolant heating chamber;
[0007] A heating component, the heating component includes an electric heating tube and a controller, the electric heating tube is in a multi-bend shape and is coiled in the coolant heating chamber, both ends of the electric heating tube pass through a partition and are located in the control chamber, the two ends of the electric heating tube are electrically connected to the controller, and the controller is installed in the control chamber and is used to control the heating of the electric heating tube.
[0008] The beneficial effects of the utility model are as follows: by arranging a partition and a sealing ring in the shell body cavity, the coolant heating chamber is effectively separated, and the coolant heating chamber is reliably sealed to prevent the liquid in the coolant heating chamber from flowing into the control chamber, so that the controller in the control chamber can operate reliably and stably; by arranging a multi-bend electric heating tube, the electric heating tube directly contacts the coolant, thereby enhancing the thermal conductivity efficiency, and effectively increasing the contact area between the electric heating tube and the coolant, thereby improving the heat exchange efficiency, and at the same time reducing the space occupied, thereby reducing the volume of the heater.
[0009] In some embodiments, the shell body includes an upper shell and a lower shell, the lower shell is detachably connected to the bottom of the upper shell, the partition is connected between the upper shell and the lower shell, and the liquid inlet and the liquid outlet are both connected to the shell wall of the lower shell. By adopting the above structure, it is convenient to process the shell body, disassemble and assemble the shell body, and use it conveniently.
[0010] In some embodiments, the upper shell is formed by casting aluminum, and the lower shell is formed by injection molding of PA66-GF30. By using the above materials for processing, the upper shell has a higher structural strength and is conducive to heat conduction of the upper shell, while the mass of the lower shell is reduced, and the heat loss of the coolant heating chamber is avoided, thereby ensuring the heating effect.
[0011] In some embodiments, an annular step is provided on the top of the lower shell, the partition is connected to the annular step by screws, and the sealing ring is squeezed between the partition and the annular step. By adopting the above structure, the partition is convenient to disassemble and assemble, and the sealing ring is reliable in sealing.
[0012] In some embodiments, the top of the lower shell is provided with an annular step, the partition is integrally connected to the bottom of the upper shell, and the sealing ring is squeezed between the partition and the annular step. By adopting the above structure, the coolant is further prevented from entering the control chamber, the structure is reliable, easy to use, and the leakage of liquid in the coolant heating chamber is avoided.
[0013] In some embodiments, it also includes a guide body, the guide body is arranged in the cooling liquid heating chamber and is connected to the partition in one piece, a gap channel with multiple bends is arranged between the outer wall of the guide body and the inner wall of the lower shell, the two ends of the gap channel are respectively connected to the liquid inlet and the liquid outlet, the spacing of the gap channel is 2-3mm, and the electric heating tube is arranged in the guide body. By adopting the above structure, the liquid is guided in the cooling liquid heating chamber, the cooling liquid is heated evenly, and the pressure difference between the liquid inlet and the liquid outlet is small, thereby improving the heating effect.
[0014] In some embodiments, a plurality of fins are integrally provided on the outer wall of the flow guide, and the extension direction of the fins is parallel to the extension direction of the gap channel. By adopting the above structure, the contact area between the flow guide and the coolant is further increased, and the heat conduction effect is improved.
[0015] In some embodiments, a temperature sensing hole is provided on the upper shell, and a thermal conductive glue for conducting heat of the coolant is provided in the temperature sensing hole. The temperature sensor on the controller is provided in the thermal conductive glue to sense the temperature of the coolant.
[0016] In some embodiments, the top of the upper shell is provided with an opening connected to the control chamber, and a cover plate is provided at the opening. By adopting the above structure, it is convenient to install or repair the controller.
[0017] In some embodiments, the controller includes a heating control panel, on which elastic terminals are provided, and the elastic terminals are plugged and electrically connected to the lead-out rods of the electric heating tube. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a three-dimensional structural schematic diagram of the first embodiment of the utility model;
[0019] Figure 2 It is a cross-sectional view of the first embodiment of the utility model;
[0020] Figure 3 It is a cross section of the second embodiment of the utility model Figure 1 ;
[0021] Figure 4 It is a cross section of the second embodiment of the utility model Figure 2 ;
[0022] Figure 5 It is a cross section of the second embodiment of the utility model Figure 3 ;
[0023] Figure 6 It is a cross-sectional view of the third embodiment of the utility model;
[0024] Figure 7 It is a partial structural schematic diagram of the third embodiment of the utility model;
[0025] Description of reference numerals:
[0026] 1. Shell body; 11. Upper shell; 110. Temperature sensing hole; 12. Lower shell; 121. Annular step; 13. Liquid inlet; 14. Liquid outlet; 101. Control chamber; 102. Coolant heating chamber; 2. Partition; 3. Sealing ring; 4. Electric heating tube; 41. Lead rod; 5. Controller; 51. Heating control panel; 52. Temperature sensor; 53. Elastic terminal; 6. Body guide; 61. Fin; 7. Cover plate; 8. Gap channel. DETAILED DESCRIPTION
[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0028] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.
[0029] Embodiment 1
[0030] like Figure 1 and Figure 2 As shown, this embodiment provides a vehicle coolant heater, which includes a shell body 1, a sealing ring 3 and a heating component. The shell body 1 is provided with a cavity, and a partition 2 is provided in the cavity. The partition 2 divides the cavity into a control cavity 101 and a coolant heating cavity 102. The shell wall of the shell body 1 is provided with a liquid inlet 13 and a liquid outlet 14 connected to the coolant heating cavity 102. The sealing ring 3 is arranged between the partition 2 and the shell body 1, and is used for sealing between the control cavity 101 and the coolant heating cavity 102. The heating component includes an electric heating tube 4 and a controller 5. The electric heating tube 4 is multi-bend and coiled in the coolant heating cavity 102. Both ends of the electric heating tube 4 pass through the partition 2 and are located in the control cavity 101. Both ends of the electric heating tube 4 are electrically connected to the controller 5. The controller 5 is installed in the control cavity 101 and is used to control the heating of the electric heating tube 4. By arranging a partition 2 and a sealing ring 3 in the cavity of the shell body 1, the coolant heating chamber 102 is effectively separated and the coolant heating chamber 102 is reliably sealed to prevent the liquid in the coolant heating chamber 102 from flowing into the control chamber 101, so that the controller 5 in the control chamber 101 can operate reliably and stably. By coiling the electric heating tube 4 with multiple bends, the electric heating tube 4 directly contacts the coolant, thereby enhancing the thermal conductivity efficiency and effectively increasing the contact area between the electric heating tube 4 and the coolant, thereby improving the heat exchange efficiency and reducing the space occupied, thereby reducing the volume of the heater.
[0031] In this embodiment, the shell body 1 includes an upper shell 11 and a lower shell 12, the lower shell 12 is detachably connected to the bottom of the upper shell 11, the partition 2 is connected between the upper shell 11 and the lower shell 12, and the liquid inlet 13 and the liquid outlet 14 are both connected to the shell wall of the lower shell 12, thereby facilitating the processing of the shell body 1, and facilitating the disassembly and assembly of the shell body 1, and facilitating use.
[0032] In this embodiment, the upper shell 11 is formed by casting aluminum, and the lower shell 12 is formed by injection molding of PA66-GF30, thereby making the upper shell 11 have higher structural strength and facilitating heat conduction of the upper shell 11, while reducing the mass of the lower shell 12 and avoiding heat loss in the coolant heating chamber 102, thereby ensuring the heating effect.
[0033] In this embodiment, an annular step 121 is provided on the top of the lower shell 12, and the partition 2 is connected to the annular step 121 by screws. The sealing ring 3 is squeezed between the partition 2 and the annular step 121, thereby facilitating the disassembly and assembly of the partition 2 and ensuring that the sealing ring 3 is reliably sealed.
[0034] In this embodiment, an opening communicating with the control chamber 101 is provided at the top of the upper shell 11 , and a cover plate 7 is provided at the opening.
[0035] Embodiment 2
[0036] like Figures 3 to 5 As shown, the difference between this embodiment and the first embodiment is that an annular step 121 is provided on the top of the lower shell 12, the partition 2 is integrally connected to the bottom of the upper shell 11, and the sealing ring 3 is squeezed between the partition 2 and the annular step 121, thereby further preventing the coolant from entering the control chamber 101. The structure is reliable and easy to use, and liquid leakage in the coolant heating chamber 102 is avoided.
[0037] In this embodiment, the vehicle coolant heater also includes a body guide 6, which is arranged in the coolant heating chamber 102 and is integrally connected to the partition 2. A multi-bend gap channel 8 is provided between the outer wall of the body guide 6 and the inner wall of the lower shell 12. The two ends of the gap channel 8 are respectively connected to the liquid inlet 13 and the liquid outlet 14. The spacing of the gap channels 8 is 2-3mm. The electric heating tube 4 is arranged in the body guide 6, thereby guiding the liquid in the coolant heating chamber 102, so that the coolant is heated evenly, and the pressure difference between the liquid inlet 13 and the liquid outlet 14 is small, thereby improving the heating effect.
[0038] In this embodiment, the controller 5 includes a heating control panel 51, on which an elastic terminal 53 is provided, and the elastic terminal 53 is plugged and electrically connected with the lead-out rod 41 of the electric heating tube 4; the upper shell 11 is provided with a temperature sensing hole 110, and the temperature sensing hole 110 is provided with a thermal conductive glue for conducting the heat of the coolant. The temperature sensor 52 on the controller 5 is arranged in the thermal conductive glue to sense the temperature of the coolant, and the temperature sensor 52 is mounted on the lower end surface of the heating control panel 51.
[0039] Embodiment 3
[0040] like Figure 6 and Figure 7 As shown, the difference between this embodiment and the second embodiment is that a plurality of fins 61 are integrally provided on the outer wall of the body guide 6, and the extension direction of the fins 61 is parallel to the extension direction of the gap channel 8, thereby further increasing the contact area between the body guide 6 and the coolant and improving the heat conduction effect.
[0041] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A vehicle coolant heater, characterized in that: It includes: A shell body (1), wherein a cavity is provided in the shell body (1), a partition (2) is provided in the cavity, the partition (2) divides the cavity into a control cavity (101) and a coolant heating cavity (102), and a liquid inlet (13) and a liquid outlet (14) communicating with the coolant heating cavity (102) are provided on the shell wall of the shell body (1); A sealing ring (3), the sealing ring (3) being arranged between the partition plate (2) and the shell body (1) and used for sealing between the control chamber (101) and the coolant heating chamber (102); A heating component, the heating component comprising an electric heating tube (4) and a controller (5), the electric heating tube (4) being in a multi-bend shape and coiled in the coolant heating chamber (102), the two ends of the electric heating tube (4) passing through a partition (2) and being located in the control chamber (101), the two ends of the electric heating tube (4) being electrically connected to the controller (5), the controller (5) being installed in the control chamber (101) and being used to control the heating of the electric heating tube (4).
2. A vehicle coolant heater according to claim 1, characterized in that: The shell body (1) comprises an upper shell (11) and a lower shell (12); the lower shell (12) is detachably connected to the bottom of the upper shell (11); the partition (2) is connected between the upper shell (11) and the lower shell (12); and the liquid inlet (13) and the liquid outlet (14) are both connected to the shell wall of the lower shell (12).
3. A vehicle coolant heater according to claim 2, characterized in that: The upper shell (11) is formed by casting aluminum, and the lower shell (12) is formed by injection molding of PA66-GF30.
4. A vehicle coolant heater according to claim 3, characterized in that: An annular step (121) is provided on the top of the lower shell (12), the partition (2) is connected to the annular step (121) by means of screws, and the sealing ring (3) is squeezed between the partition (2) and the annular step (121).
5. The vehicle coolant heater according to claim 3, characterized in that: The top of the lower shell (12) is provided with an annular step (121), the partition (2) is integrally connected to the bottom of the upper shell (11), and the sealing ring (3) is squeezed between the partition (2) and the annular step (121).
6. The vehicle coolant heater according to claim 5, characterized in that: It also includes a body guide (6), the body guide (6) being arranged in the coolant heating chamber (102) and being integrally connected to the partition (2), a gap channel (8) in a multi-bend shape being arranged between the outer wall of the body guide (6) and the inner wall of the lower shell (12), the two ends of the gap channel (8) being respectively connected to the liquid inlet (13) and the liquid outlet (14), the spacing of the gap channel (8) being 2-3 mm, and the electric heating tube (4) being arranged in the body guide (6).
7. A vehicle coolant heater according to claim 6, characterized in that: A plurality of fins (61) are integrally provided on the outer wall of the flow guide (6), and the extending direction of the fins (61) is parallel to the extending direction of the gap channel (8).
8. The vehicle coolant heater according to claim 6, characterized in that: The upper shell (11) is provided with a temperature sensing hole (110), and a heat-conducting glue for conducting the heat of the coolant is provided in the temperature sensing hole (110). The temperature sensor (52) on the controller (5) is arranged in the heat-conducting glue to sense the temperature of the coolant.
9. The vehicle coolant heater according to claim 2, characterized in that: The top of the upper shell (11) is provided with an opening communicating with the control chamber (101), and a cover plate (7) is provided at the opening.
10. The vehicle coolant heater according to claim 1, characterized in that: The controller (5) comprises a heating control panel (51), on which an elastic terminal (53) is provided, and the elastic terminal (53) is plugged and electrically connected to the lead-out rod (41) of the electric heating tube (4).