Dual-core emergency lifting electric heating table

Abstract

The utility model discloses a dual-core emergency lifting electric heating table which comprises a control panel, a first heating part, a first relay driving module, a second heating part and a second delay relay driving module. The first heating part is arranged at the lower part of the bracket, the first heating part is electrically connected with the power supply connecting interface through the first relay driving module, and the first heating part forms a first branch circuit through the first relay driving module; the second heating part is arranged at the lower part of the bracket and is electrically connected with the power supply connecting interface through a second time-delay relay driving module, the second time-delay relay driving module and the second heating part form a second branch circuit, and the second branch circuit is connected with the first branch circuit in parallel; the control panel is connected in parallel with the first branch circuit, the control panel is electrically connected with the first relay driving module, and the control panel is electrically connected with the second delay relay driving module. The problem that in the prior art, an existing electric heating table cannot reduce the damage probability of electronic components under the condition that user experience is guaranteed is solved.

Description

Technical Field

[0001] The utility model relates to a dual-core emergency lifting electric heating table, belonging to the technical field of electric heating tables. Background Art

[0002] The structure of the existing electric heating table is as follows: it includes supporting legs, a tabletop, a foot pedal, a main heating part, a first switch and a power connection line. The tabletop is fixedly connected to the upper end of the supporting legs, and the foot pedal is fixedly connected to the lower end of the supporting legs; the main heating part is arranged on the four supporting legs, and the main heating part is electrically connected to the power connection interface through the first switch.

[0003] When an electric heating table of this structure is in use, heating is mainly achieved by powering on the main heating part to generate heat. However, in production practice, companies have found that electric heating tables of this structure often have problems with the main heating part being damaged, and it often takes a certain amount of time to repair an electric heating table. During the period from when the electric heating table is damaged to when it is repaired, customers are often unable to get heating. This requires companies to shorten the waiting time from when the electric heating table is damaged to when it is repaired as much as possible. However, for companies with huge sales volumes, this quick response consumes a lot of corporate resources, and extended waiting time will lead to a worse user experience for customers. How to resolve the contradiction between extended waiting time after the electric heating table is damaged and user experience is an issue that urgently needs to be resolved in the prior art.

[0004] In order to solve the above problems, the existing technology uses two heating parts for mutual backup. When one of the heating parts is damaged, the other heating part is turned on for heating while waiting for the manufacturer to repair it. In this way, the user can use it for emergency heating during the waiting period from the time the electric heating table is damaged to the time the electric heating table is repaired, thus eliminating the need for the manufacturer to respond quickly, solving the problem of the contradiction between the extended waiting time after the electric heating table is damaged and the user experience.

[0005] However, using two heating parts brings new problems. If the two heating parts are used at the same time, at the moment when the two heating parts are turned on at the same time, the resistance of the heating parts when not heating is much lower than when heating. This leads to a problem. In many cases, the two heating parts need to be turned on at the same time to ensure the heating effect (for example, when it is very cold). Once turned on at the same time, the starting current of the heating seat will be too large, damaging the electronic components on the circuit. Therefore, how to reduce the probability of damage to electronic components while ensuring the user experience (being able to press a switch to turn on the two heating parts at the same time) is a technical problem that must be solved by the existing technology. Summary of the invention

[0006] The technical problem to be solved by the utility model is to provide a dual-core emergency lifting electric heating table to overcome the shortcomings of the prior art.

[0007] The technical solution of the utility model is: a dual-core emergency lifting electric heating table, comprising a supporting foot, a tabletop, a foot pedal, a bracket and a power connection interface, the tabletop is fixedly connected to the upper end of the supporting foot, the foot pedal is fixedly connected to the lower end of the supporting foot, and the bracket is fixedly connected between the tabletop and the foot pedal;

[0008] It also includes a control panel, a first heating unit, a first relay, a second heating unit, and a second time delay relay;

[0009] The first heating part is arranged at the lower part of the bracket, the first heating part is electrically connected to the power connection interface through the first relay, and the first heating part forms a first branch through the first relay;

[0010] The second heating part is arranged at the lower part of the bracket, the second heating part is electrically connected to the power connection interface through the second delay relay, the second delay relay and the second heating part form a second branch, and the second branch is connected in parallel with the first branch;

[0011] The control panel is connected in parallel with the first branch, the control panel is electrically connected with the first relay, and the control panel is electrically connected with the second time delay relay.

[0012] Furthermore, the first heating part is a graphene heating tube, and the length direction of the graphene heating tube is parallel to the length direction of the desktop.

[0013] Furthermore, the second heating part is a carbon fiber heating tube, and the length direction of the carbon fiber heating tube is parallel to the length direction of the desktop.

[0014] Furthermore, it also includes a heat insulation board, which is arranged between the bracket and the first heating part, and the heat insulation board is arranged between the bracket and the second heating part.

[0015] Furthermore, the lower surface of the heat insulation board is covered with a layer of reflective aluminum foil.

[0016] Further, it also includes a temperature relay;

[0017] The temperature relay is arranged between the heat insulation board and the first heating part, the temperature relay is connected in series with the first branch and the second branch, and the temperature relay is a normally closed relay.

[0018] Furthermore, it also includes a protective mesh cover, which is fixedly connected to the lower part of the bracket, and a closed space is formed between the protective mesh cover and the bracket, and the first heating part and the second heating part are covered in the closed space.

[0019] Furthermore, the control panel includes a human-computer interaction module, a controller and a relay drive module;

[0020] The human-computer interaction module is electrically connected to the controller, and the relay drive module includes two, and the two relay drive modules are electrically connected to two output pins of the controller respectively;

[0021] The output ends of the two relay driving modules are electrically connected to the first relay and the second delay relay respectively.

[0022] Furthermore, the supporting legs are electrically retractable.

[0023] The beneficial effects of the utility model are: compared with the prior art,

[0024] 1) The second delay relay of the utility model can delay the conduction of the second branch. When the first heating part is turned on, the second heating part is not turned on, but is turned on with a delay through the second delay relay, thereby avoiding the problem of a large current impacting the power circuit at the moment of turning on when the two heating parts are at a low temperature and are powered on at the same time. While ensuring the user experience (two heating parts can be turned on at the same time by pressing one switch), the probability of damage to electronic components is reduced;

[0025] 2) The utility model detects the temperature generated by the two heating parts at the heat insulation board through the temperature relay. When the temperature relay detects that the temperature is higher than the set temperature, the temperature relay automatically disconnects, so that the two heating parts cut off the current and stop heating, avoiding damage or safety problems caused by temperature rise;

[0026] 3) The utility model separates the heat of the heating part from the desktop through the heat insulation board, thus avoiding the danger of burns caused by excessive desktop temperature;

[0027] 4) The utility model can block people or objects from the high temperature area of ​​the two heating parts through the protective mesh cover, thereby avoiding burns or safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional view of the utility model;

[0029] Figure 2 It is a front view of the utility model;

[0030] Figure 3 for Figure 2 Section view at section line AA;

[0031] Figure 4 for Figure 2 Section view at the section line BB;

[0032] Figure 5 for Figure 2 Section view at the CC section line;

[0033] Figure 6 for Figure 5 Partial view at A in the middle;

[0034] Figure 7 This is a circuit connection block diagram of the utility model;

[0035] Figure 8 This is a circuit connection block diagram of the control panel of the utility model. DETAILED DESCRIPTION

[0036] Embodiment 1:

[0037] refer to Figure 1-8 In order to solve the problem that the existing electric heating table cannot reduce the probability of damage to electronic components while ensuring user experience (being able to press one switch to turn on two heating parts at the same time), a dual-core emergency lifting electric heating table is adopted in this embodiment, including a supporting foot 1, a desktop 2, a foot pedal 3, a bracket 4 and a power connection interface 10, the desktop 2 is fixedly connected to the upper end of the supporting foot 1, the foot pedal 3 is fixedly connected to the lower part of the supporting foot 1, and the bracket 4 is fixedly connected between the desktop 2 and the foot pedal 3; it also includes a control panel 13, a first heating part 6, a first relay 11, a second heating part 7 and a second delay relay 12 ; The first heating part 6 is arranged at the lower part of the bracket 4, and the first heating part 6 is electrically connected to the power connection interface 10 through the first relay 11, and the first heating part 6 forms a first branch through the first relay 11; the second heating part 7 is arranged at the lower part of the bracket 4, and the second heating part 7 is electrically connected to the power connection interface 10 through the second delay relay 12, the second delay relay 12 and the second heating part 7 form a second branch, and the second branch is connected in parallel with the first branch; the control panel 13 is connected in parallel with the first branch, the control panel 13 is electrically connected to the first relay 11, and the control panel 13 is electrically connected to the second delay relay 12.

[0038] Here, the control panel 13 can adopt the electric heater control panel available on the market, or it can adopt the following structure: the control panel 13 includes a human-computer interaction module 13-1, a controller 13-2 and a relay drive module 13-3; the human-computer interaction module 13-1 is electrically connected to the controller 13-2, the relay drive module 13-3 includes 2, and the 2 relay drive modules 13-3 are respectively electrically connected to the two output pins of the controller 13-2. The human-computer interaction module 13-1 can be a touch screen or a physical button; the output ends of the 2 relay drive modules 13-3 are respectively electrically connected to the first relay 11 and the second delay relay 12.

[0039] In order to increase the heating area, in this embodiment, the first heating part 6 is a graphene heating tube, and the length direction of the graphene heating tube is parallel to the length direction of the desktop 2. The second heating part 7 is a carbon fiber heating tube, and the length direction of the carbon fiber heating tube is parallel to the length direction of the desktop 2.

[0040] In order to avoid the risk of burns caused by excessive desktop temperature, the present embodiment further includes a heat insulation board 14 , which is arranged between the bracket 4 and the first heating part 6 , and between the bracket 4 and the second heating part 7 .

[0041] In order to increase the efficiency of transferring the heat from the two heating parts to the lower part of the heating seat, the lower surface of the heat insulation board 14 of this embodiment is covered with a layer of reflective aluminum foil.

[0042] In order to avoid damage or safety problems caused by temperature increase, a temperature relay 9 is also included in the present embodiment; the temperature relay 9 is arranged between the insulation board 14 and the first heating part 6, the temperature relay 9 is connected in series with the first branch and the second branch, and the temperature relay 9 is a normally closed relay.

[0043] In order to avoid burns or safety issues, the present embodiment also includes a protective mesh cover 5, which is fixedly connected to the lower part of the bracket 4. A closed space is formed between the protective mesh cover 5 and the bracket 4, and the first heating part 6 and the second heating part 7 are covered in the closed space.

[0044] Furthermore, the support legs 1 are electrically retractable, and can realize the lifting and lowering of the desktop.

[0045] Working principle: The present invention can delay the conduction of the second branch through the second delay relay 12. When the first heating part 6 is turned on, the second heating part is not turned on, but is turned on with a delay through the second delay relay 12, thereby avoiding the problem of large current impacting the power circuit at the moment of turning on when the two heating parts are powered on at the same time when the temperatures are low. While ensuring the user experience (the two heating parts can be turned on at the same time by pressing one switch), the probability of damage to electronic components is reduced.

[0046] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A dual-core emergency lifting electric heating table, comprising a supporting foot (1), a tabletop (2), a foot pedal (3), a bracket (4) and a power connection interface (10), wherein the tabletop (2) is fixedly connected to the upper end of the supporting foot (1), the foot pedal (3) is fixedly connected to the lower part of the supporting foot (1), and the bracket (4) is fixedly connected between the tabletop (2) and the foot pedal (3); It is characterized in that It also includes a control panel (13), a first heating unit (6), a first relay (11), a second heating unit (7) and a second time delay relay (12); The first heating part (6) is arranged at the lower part of the bracket (4), the first heating part (6) is electrically connected to the power connection interface (10) through the first relay (11), and the first heating part (6) forms a first branch through the first relay (11); The second heating part (7) is arranged at the lower part of the bracket (4), the second heating part (7) is electrically connected to the power connection interface (10) via a second delay relay (12), the second delay relay (12) and the second heating part (7) form a second branch, and the second branch is connected in parallel with the first branch; The control panel (13) is connected in parallel with the first branch, the control panel (13) is electrically connected with the first relay (11), and the control panel (13) is electrically connected with the second time delay relay (12).

2. The dual-core emergency lifting electric heating table according to claim 1 is characterized in that: The first heating part (6) is a graphene heating tube, and the length direction of the graphene heating tube is parallel to the length direction of the desktop (2).

3. The dual-core emergency lifting electric heating table according to claim 1 is characterized in that: The second heating part (7) is a carbon fiber heating tube, and the length direction of the carbon fiber heating tube is parallel to the length direction of the desktop (2).

4. The dual-core emergency lifting electric heating table according to claim 1 is characterized in that: It also includes a heat insulation board (14), wherein the heat insulation board (14) is arranged between the bracket (4) and the first heating part (6), and the heat insulation board (14) is arranged between the bracket (4) and the second heating part (7).

5. The dual-core emergency lifting electric heating table according to claim 4 is characterized in that: The lower surface of the heat insulation board (14) is covered with a layer of reflective aluminum foil.

6. The dual-core emergency lifting electric heating table according to claim 4 is characterized in that: Also includes a temperature relay (9); The temperature relay (9) is arranged between the heat insulation board (14) and the first heating part (6), the temperature relay (9) is connected in series with the first branch and the second branch, and the temperature relay (9) is a normally closed relay.

7. The dual-core emergency lift electric heating table according to claim 1 is characterized in that: It also comprises a protective mesh cover (5), which is fixedly connected to the lower part of the bracket (4), and a closed space is formed between the protective mesh cover (5) and the bracket (4), and the first heating part (6) and the second heating part (7) are covered in the closed space.

8. The dual-core emergency lifting electric heating table according to claim 1 is characterized in that: The control panel (13) comprises a human-machine interaction module (13-1), a controller (13-2) and a relay drive module (13-3); The human-machine interaction module (13-1) is electrically connected to the controller (13-2); the relay drive module (13-3) comprises two drive modules, and the two relay drive modules (13-3) are electrically connected to two output pins of the controller (13-2) respectively; The output ends of the two relay drive modules (13-3) are electrically connected to the first relay (11) and the second delay relay (12) respectively.

9. The dual-core emergency lifting electric heating table according to claim 1 is characterized in that: The supporting foot (1) is electrically retractable.

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