Electric tracing electric push rod

By setting a protective sleeve and an electric heating rod around the lubricating grease of the electric actuator to form a heating sleeve, the problem of reduced fluidity of the lubricating grease at low temperatures is solved, ensuring the normal operation of the electric actuator under low-temperature conditions.

CN223662523UActive Publication Date: 2025-12-12HANGZHOU HUADING NEW ENERGY CO LTD
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Patent Information

Application Number
CN202520306769.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-25
Publication Date
2025-12-12
Estimated Expiration
2035-02-25

AI Technical Summary

Technical Problem

In existing photovoltaic systems, the lubricating grease in the electric actuators becomes less fluid at low temperatures, causing the equipment to malfunction and lacking heating functionality.

Method used

A protective sleeve and a first electric heating rod are installed around the lubricating grease of the push rod body to form a heating sleeve. The lubricating grease is heated through the heating sleeve to ensure that its fluidity remains good under low temperature conditions.

Benefits of technology

It effectively prevents the lubricating grease from losing fluidity at low temperatures, ensuring that the electric actuator maintains good performance and reliability under low-temperature conditions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an electric heat tracing electric push rod, which comprises a push rod body, a sheath and a plurality of first electric heating rods, the push rod body is provided with a first mounting part and a second mounting part, the sheath is sleeved on the push rod body, and the first electric heating rods are arranged on the sheath. A driving motor and a reduction gear set of the push rod body are both located outside the sheath, a plurality of mounting holes are formed in the sheath, and a first electric heating rod is arranged in each mounting hole. Compared with the prior art, the push rod has the following beneficial effects that the sheath and the first electric heating rod are arranged, the heating sleeve is formed on the periphery of the lubricating grease of the push rod body, the lubricating grease can be heated in low-temperature weather, the liquidity of the lubricating grease is prevented from being reduced, and the reliability of the push rod at low temperature is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of photovoltaic auxiliary equipment, and in particular to an electric heat tracing electric actuator. Background Technology

[0002] Electric actuators are a crucial component in current photovoltaic systems. The structure of the electric actuators currently in use is shown in patent publication CN117239998B. However, due to the extremely low winter temperatures at photovoltaic power plant construction sites, the lubricating grease inside the electric actuators shown in CN117239998B experiences reduced fluidity or even solidification, affecting the normal operation of the electric actuators. Since electric actuators do not have heating functions, this problem of low-temperature operation cannot be solved. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes an electrically heated push rod. By setting a protective sleeve and a first electric heating rod, a heating sleeve is formed on the outer periphery of the lubricating grease in the push rod body. In low-temperature weather, the lubricating grease can be heated to prevent its fluidity from decreasing, thus ensuring the reliability of the push rod at low temperatures.

[0004] The technical solution adopted by this utility model is as follows:

[0005] An electric heating actuator includes an actuator body, a first mounting part and a second mounting part on the actuator body, a sheath and a plurality of first electric heating rods, the sheath being fitted onto the actuator body, the drive motor and reduction gear set of the actuator body being located outside the sheath, the sheath having a plurality of mounting holes, each mounting hole containing a first electric heating rod.

[0006] In this type of electric heat tracing actuator, the screw portion (containing lubricating grease) of the actuator body is located inside the sheath, while the drive motor and reduction gear set used to drive the screw portion are located outside the sheath. When the drive motor operates, the screw portion extends and retracts, changing the position between the first mounting part and the second mounting part. When the first electric heating rod heats up, the sheath forms a heating sleeve, which heats and keeps the lubricating grease at a low temperature, preventing the lubricating grease from becoming less fluid and ensuring that the entire actuator body maintains good performance even at low temperatures.

[0007] In summary, by setting a protective sleeve and a first electric heating rod, a heating sleeve is formed on the outer periphery of the lubricating grease in the push rod body. When the weather is cold, the lubricating grease can be heated to prevent the lubricating grease from reducing its fluidity and to ensure the reliability of the push rod at low temperatures.

[0008] Optionally, the sheath is cylindrical, and the first electric heating rods are distributed equidistantly and with equal arcs on the sheath.

[0009] The first electric heating rod is distributed at equal intervals and with equal arcs on the sheath to ensure that the temperature is equal at all points on the sheath during heating, thus ensuring the heating effect on the push rod body.

[0010] Optionally, the sheath is made of aluminum.

[0011] Optionally, it may also include a reinforcing sleeve, which is fitted over one end of the sheath.

[0012] Optionally, the reinforcing sleeve is an aluminum reinforcing sleeve.

[0013] The specific reinforcing sleeve is located on the side near the reduction gear set, and the reinforcing sleeve is used to increase the electric heat tracing effect of the reduction gearbox.

[0014] The use of aluminum sheaths and reinforcing sleeves ensures good heat transfer performance.

[0015] Optionally, the sheath is located between the first mounting portion and the second mounting portion.

[0016] Optionally, a temperature sensor may also be included, which is disposed on the push rod body.

[0017] Temperature sensors are used to detect ambient temperature.

[0018] Optionally, the outer wall surface of the sheath is provided with a polyurea coating, and a photovoltaic film is attached to the outside of the polyurea coating.

[0019] Polyurea coatings are used for heat insulation to prevent heat loss. Photovoltaic films are used to generate electricity.

[0020] Optionally, a second electric heating rod is provided inside the reduction gear set.

[0021] The second electric heating rod is used to heat the reduction gear set.

[0022] The beneficial effects of this utility model are: by setting a protective sleeve and a first electric heating rod, a heating sleeve is formed on the outer periphery of the lubricating grease in the push rod body. When the weather is cold, the lubricating grease can be heated to avoid the lubricating grease from reducing its fluidity and to ensure the reliability of the push rod at low temperatures. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a simplified schematic diagram of the electric heat tracing actuator.

[0025] Figure 2 This is a simplified schematic diagram showing the distribution of the first electric heating rod within the sheath.

[0026] The figures are labeled as follows: 1. Push rod body; 101. First mounting part; 102. Second mounting part; 11. Drive motor; 12. Reduction gear set; 2. First electric heating rod; 3. Sheath; 4. Temperature sensor; 5. Reinforcing sleeve; 6. Photovoltaic film; 7. Second electric heating rod; 8. Storage battery. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] As attached Figure 1 and appendix Figure 2 As shown, an electric heating actuator includes an actuator body 1, on which a first mounting part 101 and a second mounting part 102 are provided. It also includes a sheath 3 and a plurality of first electric heating rods 2. The sheath 3 is sleeved on the actuator body 1. The drive motor 11 and the reduction gear set 12 of the actuator body 1 are located outside the sheath 3. The sheath 3 has a plurality of mounting holes, and a first electric heating rod 2 is provided in each mounting hole.

[0031] In this type of electric heat tracing push rod, the screw portion (containing lubricating grease) of the push rod body 1 is located inside the sheath 3, while the drive motor 11 and reduction gear set 12 used to drive the screw portion are located outside the sheath 3. When the drive motor 11 operates, the screw portion extends and retracts, changing the position between the first mounting part 101 and the second mounting part 102. When the first electric heating rod 2 heats up, the sheath 3 forms a heating sleeve, which heats and keeps the lubricating grease warm, preventing the lubricating grease from becoming less fluid and ensuring that the entire push rod body 1 maintains good performance at low temperatures.

[0032] In summary, by setting a protective sleeve 3 and a first electric heating rod 2, a heating sleeve is formed on the outer periphery of the lubricating grease in the push rod body 1. When the weather is cold, the lubricating grease can be heated to avoid the lubricating grease from reducing its fluidity and to ensure the reliability of the push rod at low temperatures.

[0033] As attached Figure 1 and appendix Figure 2 As shown, the sheath 3 is cylindrical, and the first electric heating rod 2 is distributed equidistantly and with equal arcs on the sheath 3.

[0034] The first electric heating rod 2 is distributed at equal intervals and with equal arcs on the sheath 3 to ensure that the temperature is equal at all points on the sheath 3 during heating, thus ensuring the heating effect on the push rod body 1.

[0035] As attached Figure 1 and appendix Figure 2 As shown, the sheath 3 is made of aluminum.

[0036] As attached Figure 1 and appendix Figure 2 As shown, it also includes a reinforcing sleeve 5, which is fitted onto one end of the protective sleeve 3.

[0037] As attached Figure 1 and appendix Figure 2 As shown, the reinforcing sleeve 5 is made of aluminum.

[0038] Specifically, the reinforcing sleeve 5 is located on the side near the reduction gear set 12. The reinforcing sleeve 5 is used to increase the electric heat tracing effect of the reduction gear box.

[0039] The use of aluminum sheath 3 and reinforcing sleeve 5 ensures good heat transfer performance.

[0040] As attached Figure 1 and appendix Figure 2 As shown, the sheath 3 is located between the first mounting part 101 and the second mounting part 102.

[0041] As attached Figure 1 and appendix Figure 2 As shown, it also includes a temperature sensor 4, which is mounted on the push rod body 1.

[0042] Temperature sensor 4 is used to detect ambient temperature.

[0043] As attached Figure 1 and appendix Figure 2 As shown, a polyurea coating is provided on the outer wall surface of the sheath 3, and a photovoltaic film 6 is attached to the outside of the polyurea coating.

[0044] The polyurea coating is used for heat insulation to prevent heat loss. The photovoltaic film 6 is used to generate electricity. A second electric heating rod 7 is installed inside the reduction gear set 12. A storage battery 8 is installed on one side of the reduction gear set. The storage battery 8 is used to store the electricity generated by the photovoltaic film 6 and to supply power to the first and second electric heating rods.

[0045] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that 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, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electric heat tracing actuator, comprising an actuator body, wherein the actuator body is provided with a first mounting portion and a second mounting portion, characterized in that, It also includes a sheath and several first electric heating rods. The sheath is fitted onto the push rod body. The drive motor and reduction gear set of the push rod body are located outside the sheath. Several mounting holes are provided on the sheath, and a first electric heating rod is installed in each mounting hole.

2. The electric heating actuator according to claim 1, characterized in that, The sheath is cylindrical, and the first electric heating rods are distributed equidistantly and with equal arcs on the sheath.

3. The electric heating actuator according to claim 2, characterized in that, The sheath is made of aluminum.

4. The electric heating actuator according to claim 1, characterized in that, It also includes a reinforcing sleeve, which is fitted over one end of the sheath.

5. The electric heating actuator according to claim 4, characterized in that, The reinforcing sleeve is made of aluminum.

6. The electric heating actuator according to claim 1, characterized in that, The sheath is located between the first mounting part and the second mounting part.

7. The electric heating actuator according to claim 1, characterized in that, It also includes a temperature sensor, which is disposed on the push rod body.

8. The electric heating actuator according to claim 1, characterized in that, The outer wall surface of the sheath is provided with a polyurea coating, and a photovoltaic film is attached to the polyurea coating.

9. The electric heating actuator according to claim 1, characterized in that, A second electric heating rod is installed inside the reduction gear set.

Citation Information

Patent Citations

  • Integrated electric push rod

    CN117239998B