A heat-conducting uniform temperature plate
By incorporating a combination design of a bottom vacuum chamber, a metal vapor chamber, a printed circuit board, a heat convection vent, copper-aluminum heat-conducting sheets, and a heat dissipation grille into the heat-conducting vapor chamber, the sealing and fixing problems of the pipe connections in gas-insulated switchgear are solved, improving heat conduction efficiency and safety.
Patent Information
- Application Number
- CN202521594912.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-29
AI Technical Summary
Existing heat-conducting heat spreaders cannot effectively seal the pipe connections in gas-insulated switchgear, nor can they clamp and fix the pipes to prevent them from falling off.
A structure comprising a bottom vacuum chamber, a metal heat spreader, a printed circuit board, a heat convection vent, copper-aluminum heat-conducting sheets, an upper vacuum chamber, and a heat dissipation grille was designed, which enables rapid heat dissipation through tight fitting and snap-fit connection.
It improves heat conduction efficiency, ensures the stability of pipe connections, prevents detachment, and enhances the safety of the switchgear.
Smart Images

Figure CN224683712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermally conductive heat exchange plates, specifically a thermally conductive heat exchange plate. Background Technology
[0002] The insulation performance of gas-insulated switchgear relies entirely on the insulating gas medium and insulation pressure sealed in the gas chamber. Once a leak occurs, the pressure inside the gas chamber decreases, and the insulation performance will drop significantly, potentially causing insulation accidents, resulting in large-scale power outages and equipment malfunctions, and even endangering personnel safety. Every year, accidents such as switch explosions and burnouts caused by decreased insulation performance result in huge economic losses. When using gas-insulated switchgear, the external pipe connections also need to maintain a sealed effect to improve the safety of switchgear use. Therefore, a heat-conducting heat spreader is required.
[0003] An existing heat-conducting heat spreader cannot effectively seal the pipe connections in the switch cabinet during operation, nor can it clamp and fix the connected pipes at the sealing points of the theater electrical switch cabinet to prevent them from falling off. Therefore, there is an urgent need for a heat-conducting heat spreader. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a heat-conducting heat spreader to solve the problem that the existing sealing structure of gas-insulated switchgear cannot effectively seal the pipe connection positions of the switchgear during use, and cannot clamp and fix the connected pipes at the sealing positions of the theater electrical switchgear to prevent them from falling off.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-conducting heat spreader, comprising a bottom vacuum cavity, a placement groove at the upper end of the bottom vacuum cavity, a metal heat spreader installed inside the placement groove, a printed circuit board installed at the upper end of the metal heat spreader, a heat convection ventilation port at one end of the printed circuit board, a copper-aluminum heat-conducting sheet installed at the upper end of the printed circuit board, an upper vacuum cavity installed at the upper end of the copper-aluminum heat-conducting sheet, and a heat dissipation grille installed at one end of the upper vacuum cavity.
[0006] Preferably, the metal heat spreader is engaged with the bottom vacuum cavity via a placement groove, and the metal heat spreader is in close contact with the bottom vacuum cavity.
[0007] Preferably, the printed circuit board is tightly bonded to the metal heat spreader, and the printed circuit board has an open-hole design.
[0008] Preferably, the copper-aluminum heat-conducting sheet is embedded in the printed circuit board, and the copper-aluminum heat-conducting sheet is in close contact with the metal heat spreader.
[0009] Preferably, the upper vacuum chamber is engaged with the lower vacuum chamber, and the upper vacuum chamber is engaged with the heat dissipation grille.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This utility model, through the setting of a bottom vacuum chamber, a metal heat spreader, a printed circuit board, a heat convection vent, copper-aluminum heat-conducting sheets, an upper vacuum chamber, and a heat dissipation grid, allows the entire heat-conducting heat spreader to conduct heat more quickly through the internally installed metal heat spreader and the copper-aluminum heat-conducting sheets embedded in the printed circuit board. At the same time, the heat convection vent and heat dissipation grid can better dissipate heat, thereby improving the heat conduction efficiency of the device. Attached Figure Description
[0012] Figure 1 This is a structural schematic diagram of the present utility model from the front view;
[0013] Figure 2 This is a front structural sectional view of the present invention;
[0014] Figure 3 This is a schematic diagram of the bottom vacuum cavity of this utility model;
[0015] Figure 4 This is a schematic diagram of the structure of the heat convection vent and the copper-aluminum heat-conducting sheet of this utility model.
[0016] In the diagram: 1. Bottom vacuum chamber; 2. Placement slot; 3. Metal heat spreader; 4. Printed circuit board; 5. Heat convection vent; 6. Copper-aluminum heat-conducting sheet; 7. Upper vacuum chamber; 8. Heat dissipation grille. Detailed Implementation
[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0018] The embodiments of this utility model will be described below based on its overall structure.
[0019] Please see Figure 1 - Figure 4A heat-conducting heat spreader includes a bottom vacuum chamber 1, with a placement groove 2 at the top of the bottom vacuum chamber 1. A metal heat spreader 3 is installed inside the placement groove 2, and the metal heat spreader 3 is engaged with the bottom vacuum chamber 1 through the placement groove 2, with the metal heat spreader 3 and the bottom vacuum chamber 1 in close contact. The metal heat spreader 3 installed in the device can be installed through the placement groove 2, which can maintain a more stable installation and facilitate replacement and disassembly. A printed circuit board 4 is installed on the top of the metal heat spreader 3, and a heat convection vent 5 is opened at one end of the printed circuit board 4. A copper-aluminum heat-conducting sheet 6 is embedded and connected to the printed circuit board 4, and the copper-aluminum heat-conducting sheet 6 is in close contact with the metal heat spreader 3. The contact between the copper-aluminum heat-conducting sheet 6 and the metal heat spreader 3 in the device can better conduct heat, thereby improving the heat conduction efficiency of the device. A copper-aluminum heat-conducting sheet 6 is installed on the top of the printed circuit board 4, and an upper vacuum chamber 7 is installed on the top of the copper-aluminum heat-conducting sheet 6. A heat dissipation grille 8 is installed at one end of the upper vacuum chamber 7.
[0020] Working principle: In use, the metal heat spreader 3 can be installed and fixed through the placement groove 2 at the upper end of the bottom vacuum chamber 1. After fixing, the printed circuit board 4 can be placed on the upper end of the metal heat spreader 3. After placement, the copper-aluminum heat conduction sheet 6 is embedded into the interior of the printed circuit board 4. After installation, the copper-aluminum heat conduction sheet 6 can be tightly attached to the metal heat spreader 3. During attachment, the upper vacuum chamber 7 and the bottom vacuum chamber 1 in the device can be connected by a snap-fit connection. The heat conduction effect can be better achieved through the heat convection vent 5 and the heat dissipation grille 8. This completes the use of the device. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0021] Although the present invention 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 the present invention should be included within the protection scope of the present invention.
Claims
1. A thermally conductive heat spreader, comprising a bottom vacuum cavity (1), characterized in that: The bottom vacuum chamber (1) has a placement groove (2) at its upper end. A metal heat spreader (3) is installed inside the placement groove (2). A printed circuit board (4) is installed on the upper end of the metal heat spreader (3). A heat convection vent (5) is opened at one end of the printed circuit board (4). A copper-aluminum heat-conducting sheet (6) is installed on the upper end of the printed circuit board (4). An upper vacuum chamber (7) is installed on the upper end of the copper-aluminum heat-conducting sheet (6). A heat dissipation grille (8) is installed at one end of the upper vacuum chamber (7).
2. The thermally conductive heat spreader according to claim 1, characterized in that: The metal heat spreader (3) is engaged with the bottom vacuum chamber (1) through the placement groove (2), and the metal heat spreader (3) is tightly fitted with the bottom vacuum chamber (1).
3. The thermally conductive heat spreader according to claim 1, characterized in that: The printed circuit board (4) is tightly attached to the metal heat exchange plate (3), and the printed circuit board (4) has an open-hole design.
4. A thermally conductive heat spreader according to claim 1, characterized in that: The copper-aluminum heat-conducting sheet (6) is embedded in the printed circuit board (4), and the copper-aluminum heat-conducting sheet (6) is tightly attached to the metal heat spreader (3).
5. A thermally conductive heat spreader according to claim 1, characterized in that: The upper vacuum chamber (7) is engaged with the lower vacuum chamber (1), and the upper vacuum chamber (7) is engaged with the heat dissipation grille (8).