Shovel and pin integrated air pipe for PTC heater

By using the integrated duct design with a shovel and pin, and by combining L-shaped and U-shaped rods, the air outlet of the PTC heater can be flexibly adjusted, solving the problem of fixed air outlet size and improving the flexibility and stability of use.

CN224080408UActive Publication Date: 2026-04-03ZHENJIANG DONGFANG ELECTRIC HEATING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The outlet size of existing PTC heaters is fixed and cannot be adjusted according to usage requirements.

Method used

A shovel-pin integrated air duct was designed, which uses an L-shaped round rod, a sliding groove, a slider, an adjusting plate and a drive rod. The sliding of the adjusting plate drives the vertical plate to move, thereby realizing the lifting and lowering adjustment of the air outlet. The air outlet position is fixed by inserting a plug rod into the plug hole through the cooperation of a U-shaped round rod, a sliding plate and a spring.

Benefits of technology

It enables flexible adjustment of the air outlet size, making it easy to adjust according to usage needs and improving the flexibility and stability of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heaters, and discloses a shovel and pin integrated air pipe for a PTC heater, which solves the problem that a user cannot adjust the size of an air outlet according to the use requirement at present, and comprises a shell, a plurality of air outlets are equidistantly arranged on the shell, an adjusting mechanism is arranged at the top of the shell, and the shovel and pin integrated air pipe is arranged in the shell. The adjusting mechanism comprises a top block located above the shell, a vertical plate is fixedly connected to the bottom of the top block, an upper baffle is fixedly connected to the bottom of the vertical plate, two connecting columns are symmetrically and fixedly connected to the bottom of the upper baffle, a lower baffle is fixedly connected between the bottom ends of the two connecting columns, and a plurality of middle baffles are fixedly connected between the two connecting columns in a sleeving mode at equal intervals. The upper baffle plate, the lower baffle plate and each middle baffle plate are respectively arranged in each air outlet; the vertical plate can be driven to move longitudinally, then the upper baffle, the lower baffle and the middle baffles can be lifted, and therefore the size of the air outlet can be adjusted conveniently.
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Description

Technical Field

[0001] This utility model belongs to the field of heater technology, specifically a shovel-pin integrated air duct for a PTC heater. Background Technology

[0002] PTC heaters, also known as PTC heating elements, are electric heaters composed of PTC ceramic heating elements and aluminum tubes. The working principle of PTC heaters is based on the properties of PTC material. When PTC material is energized, it generates heat, raising the ambient temperature. As the temperature rises, the resistance of the PTC material increases sharply, thus limiting the current flow and achieving a self-stabilizing state. This self-limiting temperature property gives PTC heaters a significant safety advantage. In the field of PTC heaters, the integrated duct design is an innovative manufacturing process designed to improve the heater's heat transfer efficiency, overall stability, and durability. This design uses a specific shaving process to achieve an integrated and fixed connection between the PTC heating element and the duct, thus avoiding the use of silicone or other adhesives and reducing performance degradation caused by adhesive aging or detachment.

[0003] Some existing duct-type electric heaters have a fixed air outlet size, which makes it inconvenient for users to adjust the air outlet size according to their needs. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model provides an integrated duct for PTC heaters, which effectively solves the problem that it is inconvenient for users to adjust the size of the air outlet according to their needs.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated duct for a PTC heater, comprising a housing, wherein multiple air outlets are provided at equal intervals on the housing, and an adjustment mechanism is provided on the top of the housing;

[0006] The adjustment mechanism includes a top block located above the housing, a vertical plate fixedly connected to the bottom of the top block, an upper baffle fixedly connected to the bottom of the vertical plate, two connecting columns symmetrically fixedly connected to the bottom of the upper baffle, a lower baffle fixedly connected between the bottom ends of the two connecting columns, and multiple intermediate baffles fixedly sleeved at equal intervals between the two connecting columns. The upper baffle, the lower baffle, and each intermediate baffle are respectively installed in each air outlet.

[0007] Preferably, a top frame is fixedly connected to the top of the housing, and a vertical plate passes through the top frame and is movably connected to the top frame.

[0008] Preferably, an L-shaped rod is fixedly connected between the top frame and the shell, an adjusting plate is movably sleeved on the outer side of the L-shaped rod, a driving rod is rotatably connected to the top of the adjusting plate, and the top end of the driving rod is rotatably connected to the upright plate.

[0009] Preferably, the outer side of the L-shaped rod is provided with a sliding groove, and a slider is slidably connected in the sliding groove, with the slider fixed to the inner side of the adjusting plate.

[0010] Preferably, a U-shaped rod is fixedly connected to the outer side of the adjusting plate, a sliding plate is movably sleeved on the outer side of the U-shaped rod, two springs are symmetrically fixedly connected between the sliding plate and the adjusting plate, both springs are sleeved on the outer side of the U-shaped rod, a pull rod is fixedly connected to the side of the sliding plate away from the adjusting plate, and an insert rod is fixedly connected to the bottom of the sliding plate.

[0011] Preferably, a sleeve plate is fixedly connected between the L-shaped rod and the top frame, and multiple insertion holes are provided at equal intervals on the sleeve plate, into which the insertion rod is inserted.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. Through the cooperation between the L-shaped round rod, slide groove, slider, adjusting plate and drive rod, when the adjusting plate slides on the L-shaped round rod, it can drive the vertical plate to move longitudinally, which in turn can make the upper baffle, lower baffle and each intermediate baffle rise and fall, so as to facilitate the adjustment of the size of the air outlet;

[0014] 2. The U-shaped rod, the sliding plate, and the spring work together to facilitate the insertion of the rod into the corresponding hole, which can fix the position of the adjusting plate, thereby making it easier to fix the position of the upper baffle, the lower baffle, and each intermediate baffle. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the integrated duct structure for the PTC heater of this utility model;

[0018] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the top frame structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting plate structure of this utility model.

[0021] In the diagram: 1. Housing; 2. Adjustment mechanism; 201. Top block; 202. Vertical plate; 203. Middle baffle; 204. Lower baffle; 205. Connecting column; 206. Upper baffle; 207. Top frame; 208. Slide groove; 209. L-shaped round rod; 2010. Sleeve plate; 2011. Insertion hole; 2012. Adjustment plate; 2013. Drive rod; 2014. Slide plate; 2015. Pull rod; 2016. U-shaped round rod; 2017. Insert rod; 2018. Spring; 2019. Slider; 3. Air outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Example 1, by Figure 1 The present invention relates to a shovel-pin integrated air duct for a PTC heater, comprising a housing 1, with multiple air outlets 3 evenly spaced on the housing 1, an adjustment mechanism 2 on the top of the housing 1, a PTC heating element and an air duct inside the housing 1, the PTC heating element being located inside the air duct, the PTC heating element and the air duct being designed with a shovel-pin integrated design to tightly connect the two and improve heat conduction efficiency, and the outer wall of the air duct is also provided with heat sinks to further improve heat conduction efficiency.

[0024] Specifically, by Figure 2-4 The adjustment mechanism 2 includes a top block 201 located above the housing 1. A vertical plate 202 is fixedly connected to the bottom of the top block 201. An upper baffle 206 is fixedly connected to the bottom of the vertical plate 202. Two connecting posts 205 are symmetrically fixedly connected to the bottom of the upper baffle 206. A lower baffle 204 is fixedly connected between the bottom ends of the two connecting posts 205. Multiple intermediate baffles 203 are fixedly sleeved at equal intervals between the two connecting posts 205. The upper baffle 206, lower baffle 204, and each intermediate baffle 203 are respectively disposed within each air outlet 3. The top of the housing 1... A top frame 207 is fixedly connected to the top frame 207, and a vertical plate 202 passes through the top frame 207 and is movably connected to the top frame 207. An L-shaped round rod 209 is fixedly connected between the top frame 207 and the housing 1. An adjusting plate 2012 is movably sleeved on the outside of the L-shaped round rod 209. A driving rod 2013 is rotatably connected to the top of the adjusting plate 2012. The top of the driving rod 2013 is rotatably connected to the vertical plate 202. A sliding groove 208 is provided on the outside of the L-shaped round rod 209. A slider 2019 is slidably connected in the sliding groove 208. The slider 2019 is fixed to the inside of the adjusting plate 2012.

[0025] In use, the adjusting plate 2012 is first slid along the L-shaped rod 209, causing the slider 2019 to slide in the groove 208, ensuring the stability of the adjusting plate 2012 when it moves. Then, the driving rod 2013 drives the vertical plate 202 to move longitudinally and drives the upper baffle 206 to rise and fall. At the same time, the two connecting columns 205 drive the lower baffle 204 and each intermediate baffle 203 to rise and fall, finally realizing the adjustment of the size of the air outlet 3.

[0026] Specifically, by Figure 3-4 As shown, a U-shaped rod 2016 is fixedly connected to the outside of the adjusting plate 2012. A sliding plate 2014 is movably sleeved on the outside of the U-shaped rod 2016. Two springs 2018 are symmetrically fixedly connected between the sliding plate 2014 and the adjusting plate 2012. Both springs 2018 are sleeved on the outside of the U-shaped rod 2016. A pull rod 2015 is fixedly connected to the side of the sliding plate 2014 away from the adjusting plate 2012. An insert rod 2017 is fixedly connected to the bottom of the sliding plate 2014. A sleeve plate 2010 is fixedly connected between the L-shaped rod 209 and the top frame 207. Multiple insertion holes 2011 are provided at equal intervals on the sleeve plate 2010. The insert rod 2017 is inserted into the corresponding insertion hole 2011.

[0027] In use, first pull the lever 2015, causing the slide plate 2014 to slide along the U-shaped rod 2016. At this time, both springs 2018 are stretched, and the insertion rod 2017 moves horizontally until it moves out of the corresponding insertion hole 2011, releasing the fixation of the adjusting plate 2012. At this time, the adjusting plate 2012 can be slid along the L-shaped rod 209 to adjust the position of the upper baffle 206, the lower baffle 204, and each intermediate baffle 203. When the lever 2015 is released, both springs 2018 return to their original positions, causing the slide plate 2014 to slide along the U-shaped rod 2016, and causing the insertion rod 2017 to move until it is inserted into the corresponding insertion hole 2011, fixing the adjusting plate 2012 to the sleeve plate 2010. Finally, the positions of the upper baffle 206, the lower baffle 204, and each intermediate baffle 203 are fixed.

Claims

1. A spade pin integrated air pipe for PTC heater, comprising a shell (1), characterized in that: The shell (1) is provided with a plurality of air outlets (3) at equal intervals, and the top of the shell (1) is provided with an adjusting mechanism (2); The adjusting mechanism (2) comprises a top block (201) located above the shell (1), the bottom of the top block (201) is fixedly connected with a vertical plate (202), the bottom of the vertical plate (202) is fixedly connected with an upper baffle (206), the bottom of the upper baffle (206) is fixedly connected with two connecting columns (205) in a symmetrical manner, the bottom ends of the two connecting columns (205) are fixedly connected with a lower baffle (204), a plurality of intermediate baffles (203) are fixedly sleeved at equal intervals between the two connecting columns (205), and the upper baffle (206), the lower baffle (204) and each intermediate baffle (203) are arranged in each air outlet (3) respectively.

2. The spade-spike integrated air pipe for a PTC heater according to claim 1, characterized in that: The top of the shell (1) is fixedly connected with a top frame (207), and the vertical plate (202) penetrates through the top frame (207) and is movably connected with the top frame (207).

3. The spade-spike integrated air pipe for a PTC heater according to claim 2, characterized in that: The top frame (207) and the shell (1) are fixedly connected with an L-shaped round rod (209), the outer side of the L-shaped round rod (209) is movably sleeved with an adjusting plate (2012), the top of the adjusting plate (2012) is rotatably connected with a driving rod (2013), and the top end of the driving rod (2013) is rotatably connected with the vertical plate (202).

4. The spade-screw integrated air pipe for a PTC heater according to claim 3, characterized in that: The outer side of the L-shaped round rod (209) is provided with a sliding groove (208), and the sliding groove (208) is slidably connected with a sliding block (2019), and the sliding block (2019) is fixed to the inner side of the adjusting plate (2012).

5. The spade-screw integrated air pipe for a PTC heater according to claim 3, characterized in that: The outer side of the adjusting plate (2012) is fixedly connected with a U-shaped round rod (2016), the outer side of the U-shaped round rod (2016) is movably sleeved with a sliding plate (2014), two springs (2018) are fixedly connected between the sliding plate (2014) and the adjusting plate (2012) in a symmetrical manner, the two springs (2018) are sleeved on the outer side of the U-shaped round rod (2016), a pull rod (2015) is fixedly connected to the side, away from the adjusting plate (2012), of the sliding plate (2014), and an insertion rod (2017) is fixedly connected to the bottom of the sliding plate (2014).

6. The spade-screw integrated air pipe for a PTC heater according to claim 3, characterized in that: The L-shaped round rod (209) and the top frame (207) are fixedly connected with a sleeve plate (2010), a plurality of insertion holes (2011) are arranged at equal intervals on the sleeve plate (2010), and the insertion rod (2017) is inserted into the corresponding insertion hole (2011).