Compact circular tube type automobile battery heater

By using a shell and bottom cover made of nylon or fiberglass materials, combined with sealant bonding and a one-piece molded structure, the problems of high weight and complex assembly of existing automotive battery heaters are solved, achieving lightweight and efficient assembly.

CN223871546UActive Publication Date: 2026-02-03YANFENG VISTEON (CHONGQING) AUTOMOTIVE ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520192057.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-02-03
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

Existing automotive battery heaters use aluminum alloy materials, resulting in high weight and cost, and the assembly process involves cumbersome flange welding and screw fixing procedures.

Method used

The outer shell and bottom cover are made of nylon or fiberglass materials. The heating tube outlet and water outlet are connected by sealant, eliminating the need for flange connections. Combined with an integrally molded middle frame and assembly base, the screw installation process is reduced and the insulation performance is improved.

Benefits of technology

It reduces heater weight and cost, simplifies assembly processes, and improves overall machine processing efficiency and sealing performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223871546U_ABST
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Abstract

The utility model relates to the technical field of new energy battery management, in particular to a compact circular tube type automobile battery heater, which comprises a shell, a lower cover and a heating tube, the shell is buckled on the lower cover, the shell is provided with a water outlet, the water outlet end of the heating tube penetrates through the shell and is inserted into the water outlet, and the water inlet end of the heating tube is fixed on the shell. The gap between the water outlet end and the water outlet is filled with the sealant, a flange connection mode used in the past is replaced at the water outlet end of the heater, and the sealant is used in a gluing mode, so that the bolt connection procedure of the past whole machine machining is reduced, the material of the shell is improved, and the weight problem of the heater is remarkably solved.
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Description

Technical Field

[0001] This utility model relates to the field of new energy battery management technology, and in particular to a compact cylindrical automotive battery heater. Background Technology

[0002] New energy vehicle batteries require temperature management to ensure vehicle operation at a suitable temperature. In the past, battery heaters were often made of aluminum alloy, which resulted in high weight and cost. In addition, the assembly of automotive battery heaters involved many flange welding and screw fixing processes. Therefore, there is an urgent need to improve automotive battery heaters. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a compact cylindrical automotive battery heater to reduce the assembly process of the whole machine.

[0004] To achieve the above objectives, this utility model provides a compact cylindrical automotive battery heater, which includes a housing, a lower cover, and a heating tube. The housing is fastened to the lower cover. The housing is made of nylon or fiberglass material. The housing has a water outlet. The water outlet end of the heating tube passes through the housing axially and is inserted into the water outlet. The water inlet end of the heating tube is fixed to the housing. The gap between the water outlet end and the water outlet is filled with sealant.

[0005] The outer shell is made of nylon or fiberglass material and is fastened to the lower cover by snap-fit. After the water outlet is inserted into the water outlet, the sealant is filled between the water outlet and the water outlet. The sealant is injected by dispensing and then automatically cures, existing as a deformable solid between the water outlet and the water outlet, thus fixing the water outlet inside the water outlet. Compared with the prior art, this invention uses sealant to replace the flange connection used in the past for the water outlet, reducing unnecessary flange welding and screw fixing processes, improving the overall processing efficiency. Furthermore, the use of nylon or fiberglass material to replace the aluminum alloy used in the past for the outer shell can reduce the weight of the heater outer shell, reduce the cost of the heater outer shell, and effectively improve the insulation performance of the heater.

[0006] Furthermore, the inner wall of the outlet is also provided with a guide step, which is fitted with the outlet end with a clearance.

[0007] The guide step is disposed on the inner side wall of the water outlet. When the water outlet is inserted, the guide step guides the water outlet to be inserted and positions the water outlet. It should be noted that the gap between the water outlet and the guide step should not leak the sealant.

[0008] Furthermore, a guide slope is provided on the water outlet end, and the guide slope is opened at the water outlet end near the water outlet.

[0009] The guide slope is provided on the water outlet end, which helps the sealant flow into the gap between the water outlet and the water outlet end when the sealant is injected.

[0010] Furthermore, the outer casing includes a middle frame and an assembly base, the assembly base being disposed on the side of the middle frame and integrally formed with the middle frame, and the assembly base also having a socket.

[0011] The middle frame is integrally molded and made of nylon or fiberglass material, and the mounting base is used to house the socket.

[0012] Furthermore, the socket and the mounting base are integrally formed.

[0013] The socket and the mounting base are integrally formed, which can reduce the assembly steps during the assembly of the whole machine and improve the assembly efficiency.

[0014] Furthermore, the outer casing is also provided with positioning components, which are distributed on the outer edges of the middle frame and the mounting base. The outer casing is connected to the lower cover by the positioning components.

[0015] The positioning element and the lower cover are engaged in a snap-fit ​​relationship, allowing the outer shell to be assembled onto the lower cover via the positioning element.

[0016] Furthermore, the lower cover is made of nylon or fiberglass material, and the lower cover is provided with a retaining member that engages with the positioning member, and the retaining member and the positioning member are correspondingly arranged.

[0017] Using nylon or fiberglass materials to manufacture the lower cover can reduce the weight of the entire heater and the production cost. Using nylon or fiberglass materials can also significantly improve the insulation performance of the heater. The end of the retainer is an empty frame or a side retainer. The line of action of the reaction force of the separation force of the retainer passes through the axis of symmetry of the beam of the retainer.

[0018] Furthermore, the outer casing is also provided with a water inlet, which is located at one end of the outer casing opposite to the water outlet, and a sealing ring is embedded or applied around the outer periphery of the water inlet.

[0019] The inlet is used to house the inlet end, which is fixed to the inlet side by bolts. The sealing ring is used to improve the sealing performance of the inlet.

[0020] This utility model discloses a compact cylindrical automotive battery heater. Based on the existing technology, the structure of the heater is improved. The flange connection method used in the past is replaced by a sealant bonding method at the water outlet of the heater, which reduces the bolt connection process in the past whole machine processing. Furthermore, the material of the outer shell is improved by using nylon or glass fiber instead of aluminum alloy, which significantly improves the weight of the heater. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an exploded view of a compact cylindrical automotive battery heater according to this utility model.

[0023] Figure 2 This is an isometric structural diagram of the first embodiment of a compact cylindrical automotive battery heater according to the present invention.

[0024] Figure 3 This is a schematic diagram of a second embodiment of a compact cylindrical automotive battery heater according to the present invention.

[0025] Figure 4 This is a cross-sectional view of the first embodiment of a compact cylindrical automotive battery heater according to the present invention.

[0026] 1. Outer shell; 2. Lower cover; 3. Heating element; 4. Outlet; 5. Outlet end; 6. Inlet end; 7. Sealant; 8. Guide step; 9. Guide slope; 10. Middle frame; 11. Assembly base; 12. Socket; 13. Positioning component; 14. Retaining component; 15. Inlet; 16. Sealing ring. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] Please see Figures 1 to 4This utility model provides a compact cylindrical automotive battery heater, which includes a housing 1, a lower cover 2, and a heating tube 3. The housing 1 is fastened to the lower cover 2. The housing 1 is made of nylon or fiberglass material. The housing 1 is provided with a water outlet 4. The water outlet end 5 of the heating tube 3 passes through the housing 1 axially and is inserted into the water outlet 4. The water inlet end 6 of the heating tube 3 is fixed on the housing 1. The gap between the water outlet end 5 and the water outlet 4 is filled with sealant 7.

[0029] During the overall installation of the heater, the flange structure is eliminated, and the water outlet 5 of the heating tube 3 is structurally improved. The sealant 7 is applied to restrict and seal the water outlet 5 of the heating tube 3, eliminating the need for cumbersome flange welding and screw fixing procedures, thus significantly improving the overall installation efficiency.

[0030] The inner sidewall of the outlet 4 is also provided with a guide step 8, which is fitted with the outlet end 5 with a clearance.

[0031] The guide step 8 is used to guide the water outlet 5 so that the water outlet 5 can be sent into the water outlet 4. The guide step 8 and the water outlet 5 are fitted with a gap so that the water outlet 5 has a certain amount of movement between the glue application and the sealant 7, so that the sealant 7 does not leak.

[0032] The water outlet 5 is provided with a guide slope 9, which is located at the water outlet 5 near the water outlet 4.

[0033] Please see Figure 4 The guide slope 9 is provided to guide the movement of the water outlet 5 and to restrict the water outlet 5.

[0034] The outer shell 1 includes a middle frame 10 and an assembly base 11. The assembly base 11 is disposed on the side of the middle frame 10 and is integrally formed with the middle frame 10. The assembly base 11 is also provided with a socket 12.

[0035] Please see Figure 3 The middle frame 10 is integrally formed with the mounting base 11. In this embodiment, the socket 12 is provided on the mounting base 11, and the socket 12 is detachably connected to the mounting base 11.

[0036] The socket 12 and the mounting base 11 are integrally formed.

[0037] Please see Figure 1 and Figure 2In this embodiment, the socket 12 and the mounting base 11 are integrally formed, which can reduce the installation process of the socket 12 and the mounting base 11, that is, avoid unnecessary screw installation process.

[0038] The outer shell 1 is also provided with a positioning component 13, which is distributed on the outer edge of the middle frame 10 and the mounting base 11. The outer shell 1 is connected to the lower cover 2 by the positioning component 13.

[0039] The positioning element 13 is distributed on the outer edge of the middle frame 10 and the mounting base 11, and is used to snap-fit ​​with the lower cover 2.

[0040] The lower cover 2 is made of nylon or fiberglass material, and the lower cover 2 is provided with a retainer 14 that engages with the positioning member 13. The retainer 14 and the positioning member 13 are correspondingly arranged.

[0041] The lower cover 2 uses nylon or fiberglass material instead of aluminum alloy to significantly reduce the weight of the whole machine. At the same time, nylon or fiberglass material has a certain deformation capability, which allows the retaining member 14 and the positioning member 13 to be snapped together.

[0042] The outer casing 1 is also provided with a water inlet 15, which is located at one end of the outer casing 1 opposite to the water outlet 4. A sealing ring 16 is embedded or applied around the outer periphery of the water inlet 15.

[0043] The water inlet 15 is located at one end of the outer shell 1, and the sealing ring 16 is embedded or dotted around the outer periphery of the water inlet 15, so that the sealing performance can be significantly improved when the heating tube 3 is inserted.

[0044] The compact cylindrical automotive battery heater of this utility model improves the structure of the heater by using the sealant 7 to replace the previous flange connection, which effectively improves the overall processing efficiency. On the other hand, it also improves the material of the outer shell 1 to reduce the overall weight of the heater.

[0045] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A compact cylindrical automotive battery heater, characterized in that, The device includes an outer shell (1), a lower cover (2), and a heating tube (3). The outer shell (1) is fastened to the lower cover (2). One end of the outer shell (1) is provided with a water outlet (4). The water outlet (5) of the heating tube (3) passes through the outer shell (1) and is inserted into the water outlet (4). The water inlet (6) of the heating tube (3) is fixed on the outer shell (1). The gap between the water outlet (5) and the water outlet (4) is filled with sealant (7).

2. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The inner wall of the outlet (4) is also provided with a guide step (8), which is in clearance fit with the outlet end (5).

3. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The water outlet (5) is provided with a guide slope (9), which is located at the water outlet (5) near the water outlet (4).

4. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The outer shell (1) includes a middle frame (10) and an assembly base (11). The assembly base (11) is disposed on the side of the middle frame (10). The assembly base (11) is integrally formed with the middle frame (10). The assembly base (11) is also provided with a socket (12).

5. The compact cylindrical automotive battery heater as described in claim 4, characterized in that, The socket (12) and the mounting base (11) are integrally formed.

6. The compact cylindrical automotive battery heater as described in claim 4, characterized in that, The outer shell (1) is also provided with a positioning element (13), which is distributed on the outer edge of the middle frame (10) and the mounting base (11). The outer shell (1) is snapped to the lower cover (2) through the positioning element (13).

7. The compact cylindrical automotive battery heater as described in claim 6, characterized in that, The lower cover (2) is provided with a retainer (14) that engages with the positioning member (13), and the retainer (14) and the positioning member (13) are correspondingly arranged.

8. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The outer casing (1) is also provided with a water inlet (15), which is located at one end of the outer casing (1) opposite to the water outlet (4), and a sealing ring (16) is embedded or dotted around the outer periphery of the water inlet (15).

9. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The outer shell (1) is made of nylon or fiberglass material.

10. The compact cylindrical automotive battery heater as described in claim 1, characterized in that, The lower cover (2) is made of nylon or fiberglass material.