Insulation structure at end part of electrical heated tube resistor

Abstract

The utility model relates to an insulation structure of an end part of an electric heating tube resistor, and relates to the field of power supply detection equipment, the insulation structure comprises a front insulation plate, a resistor mounting plate and a rear insulation plate, the front insulation plate and the rear insulation plate are detachably mounted on the front side and the rear side of the resistor mounting plate respectively, and a plurality of first jacks are formed in the front insulation plate in a penetrating manner; a plurality of second jacks are formed in the resistor mounting plate in a penetrating manner, a plurality of third jacks are formed in the rear insulating plate in a penetrating manner, the first jacks, the second jacks and the third jacks are in one-to-one correspondence and are coaxially arranged, the aperture of each second jack is larger than that of each first jack and that of each third jack, and an isolation space is formed between the front insulating plate and the resistor mounting plate; and the end part of the electric heating tube resistor sequentially penetrates through the third jack, the second jack and the first jack and extends to the outer side of the front insulating plate. The insulation performance of the power supply detection equipment can be effectively improved.

Description

Technical Field

[0001] This application relates to the field of power supply detection equipment, and more particularly to an insulation structure at the end of a heating element resistor. Background Technology

[0002] With the rapid development of power electronics technology, backup power supplies have become indispensable emergency equipment in various applications. Backup power supplies can form an independent emergency power supply system through generator sets and control systems after a power grid failure. However, backup power supplies do not operate under normal conditions, so it is necessary to periodically connect power testing equipment to perform power tests on the entire backup power system to verify its ability to operate normally in emergencies. Regular testing of backup power supplies is required in industries such as shipbuilding, aerospace, military, communications, solar photovoltaic, wind, thermal, and nuclear power, finance, coal, chemical, metal mining, and oil extraction.

[0003] In existing technologies, common power supply testing equipment often requires the installation of multiple sets of heating element resistors to meet the needs of backup power supply power detection. These heating element resistors are primarily mounted directly onto mounting brackets made of metal plates using screws.

[0004] However, directly mounting the heating element resistor on a metal plate mounting bracket results in poor insulation performance, which can easily affect the use and safety of the equipment and needs improvement. Utility Model Content

[0005] To improve the insulation performance of power supply detection equipment, this application provides an insulation structure for the end of a heating tube resistor.

[0006] The insulation structure at the end of an electric heating tube resistor provided in this application adopts the following technical solution:

[0007] An insulating structure for the end of a heating element resistor includes a front insulating plate, a resistor mounting plate, and a rear insulating plate. The front insulating plate and the rear insulating plate are detachably mounted on the front and rear sides of the resistor mounting plate, respectively. The front insulating plate has a plurality of first insertion holes, the resistor mounting plate has a plurality of second insertion holes, and the rear insulating plate has a plurality of third insertion holes. The first insertion holes, the second insertion holes, and the third insertion holes correspond one-to-one and are coaxially arranged. The diameter of the second insertion holes is larger than the diameter of the first insertion holes and the third insertion holes. An isolation space is formed between the front insulating plate and the resistor mounting plate.

[0008] The end of the heating element resistor passes through the third socket, the second socket, and the first socket in sequence and extends to the outside of the front insulating plate.

[0009] By adopting the above technical solution, during installation, the operator can pre-install the front and rear insulating plates on the front and rear sides of the resistor mounting plate, respectively. Then, the operator can sequentially pass the end of the heating element resistor through the third, second, and first sockets, allowing the end of the heating element resistor to extend to the outside of the front insulating plate. The end of the heating element resistor is then fixed to the resistor mounting plate using nuts or similar means. The front and rear insulating plates improve the insulation performance of the resistor mounting plate. Furthermore, because air has excellent insulating properties, the isolation space between the front insulating plate and the resistor mounting plate further enhances the insulation performance of the resistor mounting bracket, providing effective protection for the safety of the power supply testing equipment. Even further, because the diameter of the second socket is larger than that of the first and second sockets, the section of the heating element resistor in the second socket does not directly contact the resistor mounting plate, further improving the insulation effect of the heating element resistor.

[0010] Preferably, the front insulating plate and the rear insulating plate are detachably mounted on the front and rear sides of the resistor mounting plate by means of bolts, and the bolt assembly includes three sets of fastening bolts;

[0011] The front insulating plate, the resistor mounting plate, and the rear insulating plate are each provided with three sets of mounting screw holes that are coaxially connected. The three sets of mounting screw holes are located on the left, middle, and right sides of the front insulating plate, the rear insulating plate, and the resistor mounting plate, respectively.

[0012] By adopting the above technical solution, the left, middle and right sides of the front insulation plate and the rear insulation plate can be fixed to the resistor mounting plate by three sets of fastening bolts, which can achieve the technical effect of detachable connection between the front insulation plate, the rear insulation plate and the resistor mounting plate.

[0013] Preferably, each of the third sockets is fitted with a T-shaped sleeve, and each T-shaped sleeve has a through hole through which the end of the power supply heating pipe resistor extends;

[0014] Each of the T-shaped sleeves includes a support portion and a tube portion. The support portion is pressed against the end of the rear insulating plate and the heating element resistor. The tube portion passes through the third socket and the second socket in sequence and extends into the first socket.

[0015] Each of the tubes is fitted with a silicone rubber ring, and several of the silicone rubber rings are pressed against the front insulating plate and the resistor mounting plate. The isolation space is formed between the front insulating plate and the resistor mounting plate.

[0016] By adopting the above technical solution, the contact between the end of the heating element resistor and the front insulation plate, the rear insulation plate and the resistor mounting plate can be further reduced by using the T-shaped sleeve, thereby improving the insulation effect of the end of the heating element resistor.

[0017] Preferably, the front and rear sides of the resistor mounting plate are respectively provided with grooves that are adapted to the front insulating plate and the rear insulating plate, and the front insulating plate and the rear insulating plate are respectively embedded in the two grooves.

[0018] By adopting the above technical solution, the front insulating plate and the rear insulating plate are embedded in the grooves on the front and rear sides of the resistor mounting plate, which makes the mounting structure of the heating tube resistor more compact.

[0019] Preferably, a plurality of first elastic rings are fixedly installed on the side wall of the front insulating plate near the resistor mounting plate. The plurality of first elastic rings are respectively located on the outside of the first socket, and the plurality of first elastic rings are all pressed against the front insulating plate and the resistor mounting plate. The isolation space is formed between the front insulating plate and the resistor mounting plate.

[0020] By adopting the above technical solution, the first elastic ring is supported between the front insulating plate and the resistor mounting plate, which can form an isolation space between the front insulating plate and the resistor mounting plate.

[0021] Preferably, a plurality of second elastic rings are fixedly mounted on the resistor mounting plate, the plurality of second elastic rings being located on the outside of the second socket, and the plurality of second elastic rings abutting against the resistor mounting plate and the front insulating plate.

[0022] By adopting the above technical solution, the second elastic ring is supported between the front insulating plate and the resistor mounting plate, which can form an isolation space between the front insulating plate and the resistor mounting plate.

[0023] In summary, the insulation structure at the end of the electric heating tube resistor of this application has at least one of the following beneficial technical effects:

[0024] 1. The insulation performance of the resistor mounting plate can be improved by setting a front insulating plate and a rear insulating plate;

[0025] 2. Due to the excellent insulating properties of air, the isolation space between the front insulating plate and the resistor mounting plate can further enhance the insulation performance of the resistor mounting bracket, providing effective protection for the safety of the power supply testing equipment;

[0026] 3. Since the diameter of the second socket is larger than that of the first and second sockets, the section of the heating element resistor in the second socket does not directly contact the resistor mounting plate, which can further improve the insulation effect of the heating element resistor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram illustrating the overall structure of the insulation structure in an embodiment of this application.

[0028] Figure 2 This is a schematic diagram illustrating the internal structure of the insulation structure in an embodiment of this application.

[0029] Figure 3 This is a schematic diagram illustrating the installation position of the first elastic ring in an embodiment of this application.

[0030] Figure 4 This is a schematic diagram illustrating the installation position of the second elastic ring in an embodiment of this application.

[0031] Explanation of reference numerals in the attached drawings: 1. Bolt assembly; 2. Front insulating plate; 3. Silicone rubber; 4. Resistor mounting plate; 41. Groove; 5. Rear insulating plate; 6. Heating element resistor; 7. T-sleeve; 8. First elastic ring; 9. Second elastic ring. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0033] Example 1

[0034] This application discloses an insulation structure at the end of a heating element resistor. (Refer to...) Figure 1 and Figure 2 It mainly includes a front insulating plate 2, a resistor mounting plate 4, and a rear insulating plate 5. The resistor mounting plate 4 is fixedly mounted on the frame of the power supply testing equipment with screws. The front insulating plate 2 and the rear insulating plate 5 are detachably mounted on the front and rear sides of the resistor mounting plate 4, respectively. The front insulating plate 2 has several first insertion holes, the resistor mounting plate 4 has several second insertion holes, and the rear insulating plate 5 has several second insertion holes. The first, second, and third insertion holes correspond one-to-one and are coaxially arranged. The diameter of the second insertion hole is larger than that of the first and third insertion holes. An isolation space is formed between the front insulating plate 2 and the resistor mounting plate 4. The end of the heating tube resistor 6 passes through the third insertion hole, the second insertion hole, and the first insertion hole in sequence and extends to the outside of the front insulating plate 2.

[0035] During installation, the operator can pre-install the front insulating plate 2 and the rear insulating plate 5 on the front and rear sides of the resistor mounting plate 4, respectively. Then, the operator can sequentially pass the end of the heating tube resistor 6 through the third socket, the second socket, and the first socket, so that the end of the heating tube resistor 6 extends to the outside of the front insulating plate 2. Then, the end of the heating tube resistor 6 is fixed on the resistor mounting plate 4 with nuts or the like. The setting of the front insulating plate 2 and the rear insulating plate 5 can improve the insulation performance of the resistor mounting plate 4. Furthermore, since air has a good insulating effect, the isolation space between the front insulating plate 2 and the resistor mounting plate 4 can further improve the insulation performance of the resistor mounting frame, providing effective protection for the safety of the power supply testing equipment. Furthermore, since the diameter of the second socket is larger than the diameters of the first and second sockets, the section of the heating tube resistor 6 in the second socket does not directly contact the resistor mounting plate 4, which can further improve the insulation effect of the heating tube resistor 6.

[0036] It should be noted that in the embodiments of this application, the front insulating plate 2 and the rear insulating plate 5 are both made of heat insulation material, and the diameters of the first and third sockets are both 24.5 mm, while the diameter of the second socket is 29 mm.

[0037] Reference Figure 2 The front insulating plate 2 and the rear insulating plate 5 are detachably installed on the front and rear sides of the resistor mounting plate 4 by bolt assembly 1, and bolt assembly 1 includes three sets of fastening bolts, with each set containing 3 fastening bolts; three sets of 3 mounting screw holes are coaxially opened on the front insulating plate 2, the rear insulating plate 5, and the resistor mounting plate 4, respectively, located on the left, middle, and right sides of the front insulating plate 2, the rear insulating plate 5, and the resistor mounting plate 4.

[0038] The front insulating plate 2, the left side, the middle side, and the right side of the rear insulating plate 5 can be fixed to the resistor mounting plate 4 by three sets of fastening bolts, which can achieve the technical effect of detachable connection between the front insulating plate 2, the rear insulating plate 5 and the resistor mounting plate 4.

[0039] Referring to the figure, each of the third sockets is fitted with a T-shaped sleeve 7, and each of the T-shaped sleeves 7 has a through hole through which the end of the heating element resistor 6 extends. Each of the T-shaped sleeves 7 includes a support part and a tube part. The support part is pressed against the rear insulating plate 5 and the end of the heating element resistor 6. The tube part passes through the third socket, the second socket and extends into the first socket. Each of the tube parts is fitted with a silicone rubber ring 3. Several silicone rubber rings are pressed against the front insulating plate 2 and the resistor mounting plate 4. An isolation space is formed between the front insulating plate 2 and the resistor mounting plate 4.

[0040] The T-shaped sleeve 7 can further reduce the contact between the end of the heating element resistor 6 and the front insulating plate 2, the rear insulating plate 5 and the resistor mounting plate 4, thereby improving the insulation effect of the end of the heating element resistor 6.

[0041] The implementation principle of the insulation structure at the end of an electric heating tube resistor according to an embodiment of this application is as follows: During installation, the operator can pre-install the front insulating plate 2 and the rear insulating plate 5 on the front and rear sides of the resistor mounting plate 4, respectively. Then, the operator can pass the end of the electric heating tube resistor 6 through the third socket, the second socket, and the first socket in one go, so that the end of the electric heating tube resistor 6 extends to the outside of the front insulating plate 2. Then, the end of the electric heating tube resistor 6 is fixed on the resistor mounting plate 4 by nuts, etc. The setting of the front insulating plate 2 and the rear insulating plate 5 can improve the insulation performance of the resistor mounting plate 4. Furthermore, since air has a good insulating effect, the isolation space between the front insulating plate 2 and the resistor mounting plate 4 can further improve the insulation performance of the resistor mounting frame, providing effective protection for the safety of the power supply detection equipment. Furthermore, since the diameter of the second socket is larger than the diameter of the first socket and the second socket, the section of the electric heating tube resistor 6 in the second socket does not directly contact the resistor mounting plate 4, which can further improve the insulation effect of the electric heating tube resistor 6.

[0042] Example 2

[0043] Reference Figure 3 In this embodiment, the front and rear sides of the resistor mounting plate 4 are respectively provided with grooves 41 that are adapted to the front insulating plate 2 and the rear insulating plate 5, and the front insulating plate 2 and the rear insulating plate 5 are respectively embedded in the two grooves 41.

[0044] The front insulating plate 2 and the rear insulating plate 5 are embedded in the grooves 41 on the front and rear sides of the resistor mounting plate 4, which makes the mounting structure of the heating tube resistor 6 more compact.

[0045] Example 3

[0046] Reference Figure 3 In this embodiment, a plurality of first elastic rings 8 are fixedly installed on the side wall of the front insulating plate 2 near the resistor mounting plate 4. The plurality of first elastic rings 8 are respectively located on the outside of the first socket, and the plurality of first elastic rings 8 are all pressed against the front insulating plate 2 and the resistor mounting plate 4, and the isolation space is formed between the front insulating plate 2 and the resistor mounting plate 4.

[0047] The first elastic ring 8 is supported between the front insulating plate 2 and the resistor mounting plate 4, and can form an isolation space between the front insulating plate 2 and the resistor mounting plate 4.

[0048] Example 4

[0049] In the embodiments of this application, reference is made to Figure 4A plurality of second elastic rings 9 are fixedly installed on the resistor mounting plate 4. The plurality of second elastic rings 9 are located on the outside of the second socket, and the plurality of second elastic rings 9 are respectively pressed against the resistor mounting plate 4 and the front insulating plate 2.

[0050] The second elastic ring 9 is supported between the front insulating plate 2 and the resistor mounting plate 4, and can form an isolation space between the front insulating plate 2 and the resistor mounting plate 4.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An insulation structure at the end of a heating element resistor, characterized in that, The device includes a front insulating plate (2), a resistor mounting plate (4), and a rear insulating plate (5). The front insulating plate (2) and the rear insulating plate (5) are detachably mounted on the front and rear sides of the resistor mounting plate (4), respectively. The front insulating plate (2) has several first insertion holes, the resistor mounting plate (4) has several second insertion holes, and the rear insulating plate (5) has several third insertion holes. The first insertion holes, the second insertion holes, and the third insertion holes correspond one-to-one and are coaxially arranged. The diameter of the second insertion hole is larger than the diameter of the first insertion hole and the third insertion hole. An isolation space is formed between the front insulating plate (2) and the resistor mounting plate (4). The end of the heating element resistor (6) passes through the third socket, the second socket, and the first socket in sequence and extends to the outside of the front insulating plate (2).

2. The insulation structure at the end of an electric heating tube resistor according to claim 1, characterized in that, The front insulating plate (2) and the rear insulating plate (5) are detachably installed on the front and rear sides of the resistor mounting plate (4) by means of a bolt assembly (1), and the bolt assembly (1) includes three sets of fastening bolts; Three sets of mounting screw holes are coaxially opened on the front insulating plate (2), the resistor mounting plate (4) and the rear insulating plate (5), respectively. The three sets of mounting screw holes are located on the left, middle and right sides of the front insulating plate (2), the rear insulating plate (5) and the resistor mounting plate (4).

3. The insulation structure at the end of a heating element resistor according to claim 2, characterized in that, Each of the third sockets is fitted with a T-shaped sleeve (7), and each of the T-shaped sleeves (7) has a through hole through which the end of the power supply heat pipe resistor (6) extends. Each of the T-shaped sleeves (7) includes a support portion and a tube portion. The support portion is pressed against the end of the rear insulating plate (5) and the heating element resistor (6). The tube portion passes through the third socket, the second socket and extends into the first socket in sequence. Each tube is fitted with a silicone rubber (3) ring, and several of the silicone rubber (3) rings are pressed against the front insulating plate (2) and the resistor mounting plate (4). The isolation space is formed between the front insulating plate (2) and the resistor mounting plate (4).

4. The insulation structure at the end of a heating element resistor according to claim 1, characterized in that, The resistor mounting plate (4) has grooves (41) on its front and rear sides that are adapted to the front insulating plate (2) and the rear insulating plate (5), respectively. The front insulating plate (2) and the rear insulating plate (5) are respectively embedded in the two grooves (41).

5. The insulation structure at the end of a heating element resistor according to claim 4, characterized in that, A plurality of first elastic rings (8) are fixedly installed on the side wall of the front insulating plate (2) near the resistor mounting plate (4). The plurality of first elastic rings (8) are respectively located on the outside of the first socket, and the plurality of first elastic rings (8) are all pressed against the front insulating plate (2) and the resistor mounting plate (4). The isolation space is formed between the front insulating plate (2) and the resistor mounting plate (4).

6. The insulation structure at the end of a heating element resistor according to claim 4, characterized in that, A plurality of second elastic rings (9) are fixedly installed on the resistor mounting plate (4). The plurality of second elastic rings (9) are located on the outside of the second socket, and the plurality of second elastic rings (9) are respectively pressed between the resistor mounting plate (4) and the front insulating plate (2).

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