Heat shield structure
The heat insulation cover structure, formed by bending a single sheet of material into one piece, solves the problems of complexity and instability in traditional stove heat insulation cover structures, achieving the effects of simplifying production, improving efficiency, and enhancing safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional stove heat insulation covers have a complex split-type welded structure, low material utilization, and the welded points are prone to loosening. The screw connections are also prone to oxidation and corrosion, which affects the safety and stability of the equipment.
The heat insulation cover structure is formed by bending a single piece of sheet metal. Through the insertion-type matching design of the pins and the locking holes, combined with the self-locking structure of the snap-fit, it can achieve convenient installation and positioning locking, eliminating the welding/splicing process.
It simplifies the production process, improves material utilization and production efficiency, reduces assembly time, and enhances the safety, stability, and aesthetics of the equipment.
Smart Images

Figure CN224065560U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stove accessories technology, and in particular to a heat insulation cover structure. Background Technology
[0002] Traditional cooktops generate high temperatures during operation, requiring a heat insulation cover to protect surrounding components. Current heat insulation covers often employ a modular welded structure or a combined installation design, such as being assembled from multiple independent sheet metal parts and then secured to the appliance base with screws or welding. This type of structure has the following drawbacks:
[0003] First, the modular structure requires the individual manufacture of each component before assembly, resulting in complex production processes, low material utilization, and high production costs. Second, welding or screw fastening methods require specialized tooling and fixtures, making assembly procedures cumbersome and hindering automated production. More importantly, welded joints are prone to thermal fatigue cracking under prolonged high-temperature environments, while screw connections are susceptible to oxidation and corrosion, leading to structural loosening or even detachment, severely impacting the safety and stability of the equipment.
[0004] This utility model is based on the above-mentioned circumstances. Utility Model Content
[0005] This invention overcomes the shortcomings of the prior art and provides a heat insulation cover structure that is simple, reliable, and easy to install.
[0006] This utility model is achieved through the following technical solution:
[0007] A heat insulation cover structure for connection to a stove, the stove having a locking hole, including a heat insulation cover body bent from the same piece of board, the heat insulation cover body including a top plate and side plates connected to the left and right sides of the top plate, the lower part of the side plate being connected to a pin that can be inserted into the locking hole, and the lower part of the pin being connected to a snap-fit piece for preventing the pin from disengaging from the locking hole.
[0008] As described above, in a heat insulation cover structure, a baffle is connected to the front and / or rear side of the top plate, and the baffle, the top plate, and the side plate together enclose the inner cavity.
[0009] As described above, in a heat insulation cover structure, a first bending line is provided at the connection between the baffle and the top plate, and the baffle and the top plate are formed by bending out a single piece of sheet material.
[0010] As described above, the heat insulation cover structure has through holes on the side plate.
[0011] In the heat insulation cover structure described above, the lower part of the baffle is provided with a notch.
[0012] As described above, in a heat insulation cover structure, the side plate is provided with a protruding structure extending in the front-rear direction.
[0013] As described above, the heat insulation cover structure includes a first connecting plate, a second connecting plate, and a third connecting plate. The right side of the first connecting plate is connected to a side plate, the left side of the first connecting plate is connected to the upper side of the second connecting plate, the lower side of the second connecting plate is connected to the left side of the third connecting plate, and the right side of the third connecting plate is connected to the side plate.
[0014] As described above, in a heat insulation cover structure, a second bending line is provided at the connection between the first connecting plate and the side plate, a third bending line is provided at the connection between the first connecting plate and the second connecting plate, a fourth bending line is provided at the connection between the second connecting plate and the third connecting plate, and a fifth bending line is provided at the connection between the third connecting plate and the side plate. The first connecting plate, the second connecting plate, the third connecting plate, and the side plate are all formed by bending a single sheet of material around their perimeter.
[0015] As described above, in a heat insulation cover structure, the left and right sides of the baffle are connected to blocks for shielding the ends of the protruding structure.
[0016] In the heat insulation cover structure described above, the baffle and the baffle plate are an integral structure.
[0017] Compared with the prior art, the present invention has the following advantages:
[0018] This invention utilizes a single sheet metal to integrally bend and form the top plate, side plate, and pin structure, completely eliminating the welding / assembly processes required for separate components. This reduces the number of assembly parts and significantly improves production efficiency and material utilization. The pins and locking holes employ an insert-type mating design, forming a self-locking structure with the locking tab extending from the lower part of the side plate. During installation, only a single downward press is needed to complete the positioning and locking, greatly shortening assembly time compared to traditional screw fixing methods. The locking tab and pins utilize a bent structure; after the pins are inserted into the locking holes, the locking tab provides a bidirectional limiting effect through its own bending angle. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:
[0020] Figure 1 This is a flattened schematic diagram of the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of this utility model. Figure 1 ;
[0023] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model. Figure 2 . Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings:
[0025] like Figures 1 to 4 The diagram shows a heat insulation cover structure for connection to a stove. The stove has a locking hole. The heat insulation cover structure includes a heat insulation cover body 1 formed by bending the same metal sheet. The heat insulation cover body 1 includes a top plate 11 and side plates 12 connected to the left and right sides of the top plate 11. The lower part of the side plate 12 is connected to a pin 13 that can be inserted into the locking hole. The lower part of the pin 13 is connected to a locking piece 14 for preventing the pin 13 from disengaging from the locking hole.
[0026] This utility model utilizes a single sheet metal plate to integrally bend and form the top plate 11, side plate 12, and pin 13, completely eliminating the welding / assembly process of separate components, reducing the number of assembly parts, and significantly improving production efficiency and material utilization. The pin 13 and the locking hole adopt an insertion-type fit design, forming a self-locking structure with the locking piece 14 extending from the lower part of the side plate 12. During installation, only a single downward press is required to complete the positioning and locking, greatly shortening the assembly time compared to traditional screw fixing methods. The locking piece 14 and the pin 13 adopt a bent structure. After the pin 13 is inserted into the locking hole, the locking piece 14 generates a bidirectional limiting effect through its own bending angle. The locking piece 14 is a barb structure bent out from the lower part of the pin 13.
[0027] The aforementioned snap-fit piece 14 is in the shape of a barb, but it can also be in other shapes.
[0028] In one embodiment, a baffle 2 is connected to the front and / or rear side of the top plate 11, and the baffle 2, the top plate 11, and the side plate 12 together enclose the inner cavity. During use, the pulse box of the stove is placed inside the inner cavity. A first bending line 20 is provided at the connection between the baffle 2 and the top plate 11, and the baffle 2 and the top plate 11 are formed by bending from a single piece of material.
[0029] In one embodiment, the side plate 12 is provided with through holes 3. The through holes 3 allow some heat to dissipate through air convection or radiation, preventing heat buildup inside the heat shield and thus avoiding localized overheating. Simultaneously, since metal materials expand at high temperatures, the openings serve as stress relief points, reducing the risk of deformation or cracking due to thermal expansion and contraction, extending component lifespan. By dispersing thermal stress, the heat shield is prevented from warping due to temperature changes, which could affect its sealing performance or cause pressure on other components. High temperatures within a closed space may lead to pressure changes; the openings can balance the internal and external pressures, preventing the heat shield from deforming or producing abnormal noises due to pressure differences.
[0030] In one embodiment, the lower part of the baffle 2 is provided with a notch 4, which facilitates the routing of electronic components inside the heat shield.
[0031] In one embodiment, the side plate 12 is provided with a protruding structure 5 extending in the front-rear direction. Specifically, the protruding structure 5 includes a first connecting plate 51, a second connecting plate 52, and a third connecting plate 53. The right side of the first connecting plate 51 is connected to the side plate 12, the left side of the first connecting plate 51 is connected to the upper side of the second connecting plate 52, the lower side of the second connecting plate 52 is connected to the left side of the third connecting plate 53, and the right side of the third connecting plate 53 is connected to the side plate 12. A second bending line 510 is provided at the connection between the first connecting plate 51 and the side plate 12, a third bending line 511 is provided at the connection between the first connecting plate 51 and the second connecting plate 52, a fourth bending line 520 is provided at the connection between the second connecting plate 52 and the third connecting plate 53, and a fifth bending line 530 is provided at the connection between the third connecting plate 53 and the side plate 12. The first connecting plate 51, the second connecting plate 52, the third connecting plate 53, and the four sides of the side plate 12 are bent out from a single piece of sheet material, thereby improving the strength of the side plate 12.
[0032] In one embodiment, baffles 2 are connected to blocks 6 on both the left and right sides to cover the ends of the protruding structures 5. The blocks 6 and baffles 2 are integrally formed, resulting in better aesthetics.
Claims
1. A heat shield structure for connection to a cooktop, the cooktop being provided with a clamping hole, characterized in that: The heat shield body (1) is bent from the same plate, and comprises a top plate (11) and side plates (12) connected to the left and right sides of the top plate (11), the lower part of the side plates (12) is connected with a plug pin (13) capable of being inserted into a clamping hole, and the lower part of the plug pin (13) is connected with a clamping piece (14) for limiting the plug pin (13) from being separated from the clamping hole.
2. A heat shield structure according to claim 1, wherein: The front side and / or the rear side of the top plate (11) is connected with a baffle (2), and the baffle (2), the top plate (11) and the side plates (12) jointly enclose an inner cavity.
3. A heat shield structure according to claim 2, wherein: The connection between the baffle (2) and the top plate (11) is provided with a first bending line (20), and the baffle (2) and the top plate (11) are bent from one plate.
4. A heat shield structure according to claim 3, wherein: The side plates (12) are provided with through holes (3).
5. A heat shield structure according to claim 3, wherein: The lower part of the baffle (2) is provided with a notch (4).
6. A heat shield structure according to any one of claims 2 to 5, wherein: The side plates (12) are provided with a protruding structure (5) extending in the front-rear direction.
7. A heat shield structure according to claim 6, wherein: The protruding structure (5) comprises a first connecting plate (51), a second connecting plate (52) and a third connecting plate (53), the right side of the first connecting plate (51) is connected to the side plate (12), the left side of the first connecting plate (51) is connected to the upper side of the second connecting plate (52), the lower side of the second connecting plate (52) is connected to the left side of the third connecting plate (53), and the right side of the third connecting plate (53) is connected to the side plate (12).
8. A heat shield structure according to claim 7, wherein: The connection between the first connecting plate (51) and the side plate (12) is provided with a second bending line (510), the connection between the first connecting plate (51) and the second connecting plate (52) is provided with a third bending line (511), the connection between the second connecting plate (52) and the third connecting plate (53) is provided with a fourth bending line (520), and the connection between the third connecting plate (53) and the side plate (12) is provided with a fifth bending line (530), and the first connecting plate (51), the second connecting plate (52), the third connecting plate (53) and the side plate (12) are bent from one plate.
9. A heat shield structure according to claim 8, wherein: The left and right sides of the baffle (2) are connected with a stop block (6) for shielding the end of the protruding structure (5).
10. A heat shield structure according to claim 9, wherein: The stop block (6) and the baffle (2) are of an integral structure.