An installation base for detecting an electric heating tube

Abstract

The utility model relates to electric heating tube production equipment technical field, especially a kind of installation base for electric heating tube detection, including water storage tank, the top of water storage tank is placed with mounting plate, the bottom of mounting plate is detachably installed with electric heating tube, the top of mounting plate is provided with positive terminal post and negative terminal post, the positive terminal post and negative terminal post are respectively used to and the positive and negative pole electric connection of electric heating tube, the side top end of water storage tank is fixedly installed with control box, the inside of control box is provided with control circuit, the control circuit is electrically connected with positive terminal post and negative terminal post by wiring harness, the control circuit is used to control the start-stop of electric heating tube. By adopting the above technical scheme, the setting of control circuit can make the device complete the life test of electric heating tube, and the inside of water storage tank can store water to test the service life of electric heating tube in actual working environment.

Description

Technical Field

[0001] This utility model relates to the technical field of electric heating tube production equipment, and in particular to an installation base for testing electric heating tubes. Background Technology

[0002] Electric heating elements are electrical components that convert electrical energy into heat energy. Due to their low price, ease of use, convenient installation, and lack of pollution, they are widely used in various heating applications.

[0003] The existing technical solutions have the following drawbacks: the structure is too complex and time-consuming for life testing of electric heating tubes, and it is not easy to simulate the real environment, and the test scheme is too simple. Utility Model Content

[0004] The purpose of this invention is to provide a mounting base for testing electric heating tubes, so as to solve the problems existing in the prior art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] An installation base for testing an electric heating element includes a water tank. A mounting plate is placed on top of the water tank, and an electric heating element is detachably mounted on the bottom of the mounting plate. A positive terminal and a negative terminal are provided on the top of the mounting plate, respectively used for electrical connection to the positive and negative terminals of the electric heating element. A control box is fixedly installed on one side of the top of the water tank. The control box contains control circuitry, which is electrically connected to the positive and negative terminals via a wiring harness. The control circuitry is used to control the start and stop of the electric heating element.

[0007] By adopting the above technical solution, the control circuit can be set up so that the device can complete the life test of the electric heating tube, and the water tank can store water to test the life of the electric heating tube in the actual working environment.

[0008] In a further embodiment, the control circuit includes a servo motor, a cooling fan, and a switching switch. The cooling fan is fixedly installed inside the control box on the left side. The control box has multiple ventilation holes on both the left and right sides. The switching switch is fixedly installed at the center of the bottom of the control box. The servo motor is used to drive the switching switch and is fixedly installed inside the control box.

[0009] By adopting the above technical solution, a servo motor drives the switching switch to complete rapid switching during use, thereby realizing the rapid start and stop of the heating element and enabling the detection of the number of times the heating element is started and stopped. The switching speed is controllable by using a servo motor drive.

[0010] In a further embodiment, the switching switch includes an insulating plate and a support column. The support column is fixedly installed at the top center of the insulating plate. A bearing is sleeved at the bottom end of the support column. A disc is sleeved on the outer ring of the bearing. Multiple fixing blocks are axially and evenly arranged on the top of the insulating plate. Two receiving slots are spaced apart on the top of each fixing block. A metal spring is fixedly installed inside each receiving slot. The shortest distance between the two receiving slots and the support column is not the same. A metal sheet corresponding to the two receiving slots is provided at the bottom of the disc.

[0011] By adopting the above technical solution, the two receiving slots on the same fixed block are actually spaced apart along the center of the insulating plate to the outside. The fixed block is made of insulating material when needed. Taking the fixed block located in front as an example, the left and right sides of the two receiving slots are open. So when the drive motor drives the disc to rotate, the disc rotates to the corresponding position, and the metal piece is inserted into the metal spring, realizing the conduction of the metal spring. When the disc continues to rotate, the metal spring on the fixed block at the corresponding position is disconnected, thereby realizing the on and off control of the circuit.

[0012] In a further embodiment, a first gear is fitted onto the top of the disk, and a second gear is fitted onto the output shaft of the servo motor. The first gear meshes with the second gear, and the number of teeth on the first gear is 3-5 times the number of teeth on the second gear.

[0013] By adopting the above technical solution, the disc also needs to be made of insulating material, and the number of teeth is set in order to reduce the transmission ratio and reduce the rotational speed of the disc.

[0014] In a further embodiment, the metal spring includes a first paddle and a second paddle, both of which are made of metal. There is a gap between the first paddle and the second paddle. The first paddle is located on the side of the second paddle away from the support column. The middle section of the side of the first paddle and the second paddle that are close to each other is a raised arc-shaped structure. The bottom end of the metal sheet is provided with a sharp-angled rounded structure.

[0015] By adopting the above technical solution, both the first and second levers are very thin copper sheets with a long strip structure. The top and bottom of the first and second levers are fixedly installed on the inner wall of the receiving groove, so that the straight distance between the top and the second mounting point is less than the length of the lever itself. This allows the middle position of the first and second levers to bend and protrude. Then, a return spring is set on the side opposite to each other at the bent position, so that the bent position can be automatically reset. Because the bottom end of the metal sheet is provided with a rounded corner structure, it can be inserted from both sides into the position between the first and second levers to realize the conduction between the first and second levers.

[0016] In a further embodiment, the control box is equipped with an energy storage battery. The positive terminal of the energy storage battery is connected to one end of a plurality of first wires, and the other end of each of the plurality of first wires is connected to a first lever. The negative terminal of the energy storage battery is connected to one end of a plurality of second wires, and the other end of each of the plurality of second wires is connected to a first lever. The positive terminal is connected to one end of a plurality of third wires, and the other end of each of the plurality of third wires is connected to a second lever, and the second lever connected to the third wires corresponds to the first lever connected to the first wires. The negative terminal is connected to one end of a plurality of fourth wires, and the other end of each of the plurality of fourth wires is connected to a second lever, and the second lever connected to the fourth wires corresponds to the first lever connected to the second wires.

[0017] In a further embodiment, a power access module is provided on the top of the control box, which is used to realize the electrical connection between the external power source and the energy storage battery.

[0018] In summary, this utility model has the following beneficial effects:

[0019] 1. By setting up the control circuit, this device can complete the life test of the electric heating tube. The water tank can store water to test the life of the electric heating tube in the actual working environment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the control box used to illustrate this utility model;

[0022] Figure 3 This is a structural diagram illustrating the insulating plate and fixing block of this utility model.

[0023] Figure 4 This is a simplified circuit connection diagram used to illustrate this utility model.

[0024] In the diagram, 1. Water tank; 2. Mounting plate; 3. Positive terminal; 4. Negative terminal; 5. Control box; 6. Servo motor; 7. Cooling fan; 8. Switch; 81. Insulation plate; 82. Support column; 9. Disc; 10. Metal spring; 100. Metal sheet; 101. First lever; 102. Second lever; 11. First gear; 12. Second gear. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to the attached figures. Figure 1 In this specification, the terms "bottom surface" and "top surface," "inner" and "outer" refer to the direction toward or away from the geometry of a specific component. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this specification, "a plurality of" means two or more, unless otherwise explicitly and specifically defined by the direction of the center.

[0027] Example 1:

[0028] like Figures 1-4As shown, a mounting base for testing an electric heating element includes a water tank 1. A mounting plate 2 is placed on top of the water tank 1, and an electric heating element is detachably mounted on the bottom of the mounting plate 2. A positive terminal 3 and a negative terminal 4 are provided on the top of the mounting plate 2, respectively used for electrical connection to the positive and negative terminals of the electric heating element. A control box 5 is fixedly mounted on the top side of one side of the water tank 1. The control box 5 contains control circuitry, which is electrically connected to the positive terminal 3 and the negative terminal 4 via a wiring harness. The control circuitry is used to control the start and stop of the electric heating element. The control circuitry includes a servo motor 6, a cooling fan 7, and a switch 8. The cooling fan 7 is fixedly installed on the left side inside the control box 5. The control box 5 has switches on both the left and right sides. The control box 5 has multiple ventilation holes. A switch 8 is fixedly installed at the center of the bottom inner part of the control box 5. A servo motor 6 drives the switch 8 and is also fixedly installed inside the control box 5. The switch 8 includes an insulating plate 81 and a support column 82. The support column 82 is fixedly installed at the center of the top of the insulating plate 81. A bearing is fitted at the bottom of the support column 82, and a disc 9 is fitted around the outer ring of the bearing. Multiple fixing blocks are evenly arranged axially on the top of the insulating plate 81. Each fixing block has two accommodating slots spaced apart on its top. A metal spring 10 is fixedly installed inside each accommodating slot. The shortest distance between the two accommodating slots and the support column 82 is not the same. A metal sheet 100 corresponding to the two accommodating slots is provided at the bottom of the disc 9. A first gear 11 is fitted onto the top of disk 9, and a second gear 12 is fitted onto the output shaft of servo motor 6. The first gear 11 meshes with the second gear 12, and the number of teeth of the first gear 11 is 3-5 times the number of teeth of the second gear 12. The metal spring 10 includes a first lever 101 and a second lever 102. Both the first lever 101 and the second lever 102 are made of metal. There is a gap between the first lever 101 and the second lever 102. The first lever 101 is located on the side of the second lever 102 away from the support column 82. The middle section of the side of the first lever 101 and the second lever 102 that are close to each other has a raised arc-shaped structure. The bottom end of the metal sheet 100 is provided with a sharp-angled rounded structure. The control box 5 is equipped with an energy storage battery. The positive terminal of the battery is connected to one end of multiple first wires, and the other end of each of the multiple first wires is connected to a first lever 101. The negative terminal of the battery is connected to one end of multiple second wires, and the other end of each of the multiple second wires is connected to a first lever 101. The positive terminal 3 is connected to one end of multiple third wires, and the other end of each of the multiple third wires is connected to a second lever 102, and the second lever 102 connected to the third wires corresponds to the first lever 101 connected to the first wires. The negative terminal 4 is connected to one end of multiple fourth wires, and the other end of each of the multiple fourth wires is connected to a second lever 102, and the second lever 102 connected to the fourth wires corresponds to the first lever 101 connected to the second wires.A power input module is located on the top of control box 5. This module is used to electrically connect an external power source to the energy storage battery.

[0029] Specific implementation process: The main function of the water storage tank is to store water. The method for testing the life of the electric heating element in this application includes: first heating the electric heating element to the specified working temperature, and then quickly switching it on and off in the air for testing.

[0030] Alternatively, after storing water inside the water tank, the heating element can be heated to a specified temperature for a rapid on / off test.

[0031] You can also store water at a certain temperature inside the water tank and then quickly test the on / off state of the heating element.

[0032] The main purpose is to simulate more real-world scenarios and improve the collection of life test data for electric heating elements.

[0033] Therefore, an infrared recognition device needs to be installed inside the control box, and a corresponding recognition area needs to be set on the top of the disc. The number of times the circuit has been switched on and off can be determined after each pass. The number of fixed blocks that the metal plate at the bottom of the disc passes through is fixed for each revolution. Because rapid switching is required, a lot of heat will be generated inside the control box, so a cooling fan is needed to dissipate the heat. In order to further protect the internal components of the control box, grounding protection wires need to be installed on the housing of the control and servo motors, the cooling fan, and the insulating board. The insulating board, fixed blocks, support columns, and disc all need to be made of insulating materials, and the withstand voltage of the insulating materials must not be less than 380 volts.

[0034] like Figure 3 As shown, in order to protect the energy storage battery, a capacitor is set at the middle of each first wire, and a unidirectional capacitor is set on the third wire. The unidirectional capacitor is used to realize unidirectional conduction of the first wire, the first lever, the metal plate, the second lever, and the third wire.

[0035] In the embodiments disclosed in this utility model, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments disclosed in this utility model according to the specific circumstances.

[0036] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An installation base for detecting an electrothermal tube, characterized by: The utility model provides an electric heating water storage tank, including water storage tank (1), the top of water storage tank (1) places the mounting plate (2), the bottom of mounting plate (2) is detachably installed electric heating tube, the top of mounting plate (2) is provided with positive terminal post (3) and negative terminal post (4), positive terminal post (3) and negative terminal post (4) are used for and the positive and negative pole electric connection of electric heating tube respectively, one side top of water storage tank (1) is fixedly installed control box (5), the inside of control box (5) is provided with control circuit, control circuit is electrically connected with positive terminal post (3) and negative terminal post (4) through wiring harness, and control circuit is used to control the start and stop of electric heating tube.

2. The mounting base for detecting an electrothermal tube according to claim 1, characterized in that: The control circuit includes a servo motor (6), a cooling fan (7), and a switch (8). The cooling fan (7) is fixedly installed on the inside left side of the control box (5). The left and right sides of the control box (5) are both provided with a plurality of air holes. The switch (8) is fixedly installed at the bottom center of the control box (5). The servo motor (6) is used to drive the switch (8) and is fixedly installed inside the control box (5).

3. The mounting base for detecting an electrothermal tube according to claim 2, characterized in that: The switch (8) includes an insulating plate (81) and a support column (82). The support column (82) is fixedly installed at the top center of the insulating plate (81). The bottom end of the support column (82) is sleeved with a bearing. The outer ring of the bearing is sleeved with a disc (9). The top of the insulating plate (81) is uniformly provided with a plurality of fixed blocks in the axial direction. The top of each fixed block is spaced apart and provided with two accommodation grooves. The inside of each accommodation groove is fixedly installed with a metal spring piece (10). The shortest distance between the two accommodation grooves and the support column (82) is inconsistent. The bottom of the disc (9) is provided with a metal sheet (100) corresponding to the two accommodation grooves.

4. The mounting base for detecting an electrothermal tube according to claim 3, characterized in that: The top end of the disc (9) is sleeved with a first gear (11). The output shaft of the servo motor (6) is sleeved with a second gear (12). The first gear (11) is engaged with the second gear (12), and the number of teeth of the first gear (11) is 3-5 times the number of teeth of the second gear (12).

5. The mounting base for detecting an electrothermal tube according to claim 4, characterized in that: The metal spring piece (10) includes a first tab (101) and a second tab (102). Both the first tab (101) and the second tab (102) are made of metal. There is a gap between the first tab (101) and the second tab (102). The first tab (101) is located on the side of the second tab (102) away from the support column (82). The middle section of the side of the first tab (101) and the second tab (102) close to each other is a convex arc structure. The bottom end of the metal sheet (100) is provided with an acute angle rounded structure.

6. The mounting base for detecting an electrothermal tube according to claim 5, characterized in that: The inside of the control box (5) is provided with an energy storage battery, a plurality of first wires are communicated with one end of the positive electrode of the energy storage battery, the other end of the plurality of first wires is respectively communicated with a first switch (101), a plurality of second wires are communicated with one end of the negative electrode of the energy storage battery, the other end of the plurality of second wires is respectively communicated with a first switch (101); a plurality of third wires are communicated with one end of the positive electrode connecting post (3), the other end of the plurality of third wires is respectively communicated with a second switch (102), and the second switch (102) communicated by the third wire corresponds to the first switch (101) communicated by the first wire; a plurality of fourth wires are communicated with one end of the negative electrode connecting post (4), the other end of the plurality of fourth wires is respectively communicated with a second switch (102), and the second switch (102) communicated by the fourth wire corresponds to the first switch (101) communicated by the second wire.

7. The mounting base for detecting an electrothermal tube according to claim 6, characterized in that: The top of the control box (5) is provided with a power supply access module, and the power supply access module is used for realizing the electrical connection between the external power supply and the energy storage battery.

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