Novel profile type brazing furnace passing plate
By using a novel profile-type brazing furnace plate design, the sealing and welding problems of traditional liquid cooling plates are solved, achieving efficient heat dissipation and low-cost welding of the battery, thus improving the overall performance of the battery.
Patent Information
- Application Number
- CN202520081287.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-03-10
- Estimated Expiration
- 2035-01-14
AI Technical Summary
Traditional power battery liquid cooling plates have problems with sealing and welding, making it difficult to avoid welding porosity and cracks, and the welding cost is high.
A novel profile-type brazed furnace plate design is adopted. By setting welding wire and welding sheet on the plug and composite plate, the plug and profile are fully sealed, and the welding strength is enhanced by welding connection.
This improved the battery's heat dissipation and sealing performance, reduced welding costs, and ensured welding reliability and heat exchange efficiency.
Smart Images

Figure CN223986610U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchanger liquid cooling plate technology, specifically a novel profile-type brazed furnace plate. Background Technology
[0002] In water-cooled thermal management systems, stamped battery cooling plates are typically positioned below the battery cells or modules. They are integrated with the lower battery casing before assembling the cells or modules, as well as the piping components of the electronic control system and the battery thermal management system. With the development of new energy vehicles, the demand for liquid cooling of power batteries is increasing, making liquid cooling plates a standard feature of power battery packs. Currently, there are three main technical solutions for power battery liquid cooling plates: aluminum profile stir welding, harmonica tube profile brazing, and blown plate.
[0003] Traditional plugs are T-shaped long sections. The transverse part of the plug is inserted into the opening on the side of the cold plate body, while the inner side of the longitudinal part of the plug fits against the outer end face of the cold plate body, and its upper and lower surfaces are flush with the upper and lower surfaces of the cold plate body. If the plug and the cold plate body are sealed and fixed by friction stir welding, it is necessary to perform fusion welding for repair. Although this solution can solve the sealing problem well, it has the problems of increased welding process and cost. Traditional connectors are inserted into the inlet and outlet ports of the cold plate body and are limited by their own flange. The flange of the connector is sealed and fixed to the upper surface of the cold plate body by TIG / MIG welding. Weld porosity and cracks are the main problems that exist in welding and are difficult to avoid. Utility Model Content
[0004] The purpose of this utility model is to provide a novel profile-type brazing furnace plate to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel profile brazing furnace plate, comprising a furnace plate body, wherein sealing portions are symmetrically provided at both ends of the furnace plate body, the sealing portions comprising a first plug, a second plug, a first composite plate and a second composite plate, and a water nozzle connected thereto is provided at one end of the furnace plate body near the sealing portion.
[0006] In a further optimized configuration, the first plug is welded to the through hole on the end face of the furnace plate body.
[0007] In a further optimized configuration, the second plug is welded to the cross-sections at both ends of the furnace plate body.
[0008] In a further optimized configuration, both the first composite plate and the second composite plate are double composite plates, and are respectively inserted into the corresponding holes at both ends of the furnace plate body.
[0009] In a further optimization, a welding plate is provided between the water nozzle and the mounting hole opened on the end face of the furnace plate body.
[0010] In a further optimization, both the first and second plugs are provided with grooves for embedding welding wire.
[0011] In a further optimized manner, a first welding wire and a second welding wire are embedded in each of the grooves.
[0012] Beneficial effects
[0013] The novel profile-type brazed furnace plate provided by this utility model is beneficial for battery miniaturization and has excellent heat dissipation performance. Through the filling of welding wire and welding sheet, the plug and the cross-section of the profile are fully sealed and welded, ensuring the heat exchange area and heat exchange efficiency of the furnace plate. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is an exploded view of the overall structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the process flow of this utility model. Detailed Implementation
[0017] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0018] Example
[0019] like Figure 1-2 As shown, a novel profile-type brazing furnace plate is characterized by: including a furnace plate body 1, with sealing parts symmetrically provided at both ends of the furnace plate body 1, the sealing parts including a first plug 7, a second plug 6, a first composite plate 2 and a second composite plate 3, and a water nozzle 4 connected thereto at one end of the furnace plate body 1 near the sealing part.
[0020] In this embodiment, the first plug 7 is welded to the through hole on the end face of the furnace plate body 1.
[0021] The second plug 6 is welded to the cross-sections at both ends of the furnace plate body 1.
[0022] Both the first composite plate 2 and the second composite plate 3 are double composite plates, and are respectively inserted into the corresponding holes at both ends of the furnace plate body 1.
[0023] A welding plate is provided between the water nozzle 4 and the mounting hole opened on the end face of the furnace plate body 1.
[0024] Both the first plug 7 and the second plug 6 have grooves for embedding welding wire.
[0025] The grooves are each embedded with a first welding wire 5 and a second welding wire 8.
[0026] First, the product is degreased, then assembled. After the components are assembled, they are brazed. After brazing, laser marking is performed to ensure product batch. After marking, the product is dried. After drying, it is calibrated. After calibration, the product is tested with helium gas. After the test, the product is powder coated.
[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.
Claims
1. A new profiled brazing furnace plate, characterized by: The application relates to a furnace pass plate body (1) which is symmetrically provided with sealing parts at both ends, the sealing parts comprising first plugs (7), second plugs (6), first composite plates (2) and second composite plates (3), one end of the furnace pass plate body (1) close to the sealing parts is provided with a water nozzle (4) connected with the sealing parts, the first plugs (7) are weldedly connected with through holes in the end surface of the furnace pass plate body (1), the second plugs (6) are respectively weldedly connected with the cross sections of both ends of the furnace pass plate body (1), the first composite plates (2) and the second composite plates (3) are both double composite plates and are respectively inserted into corresponding holes in both ends of the furnace pass plate body (1), welding sheets are arranged between the water nozzle (4) and mounting holes in the end surface of the furnace pass plate body (1), the first plugs (7) and the second plugs (6) are both provided with grooves for embedding welding wires, and the first plugs (7) and the second plugs (6) are both embedded with first welding wires (5) and second welding wires (8).