Electrode sheet preheating device

Abstract

The utility model provides a kind of electrode piece preheating device, including lower gland and the upper gland being hinged with the lower gland;The inner wall of the lower gland is fixedly installed with ceramic heating sheet, the upper of the ceramic heating sheet is fixedly connected with heat conduction plate, the upper surface of the heat conduction plate is bonded with rubber cushion;The top side of the lower gland is provided with recess, the recess is fixedly installed with thermal sensor, for real-time detection of the temperature of heating area;The sidewall of the lower gland is fixedly installed with microcontroller.The utility model is by setting ceramic heating sheet, heat conduction plate and the laminated structure of rubber cushion in the inner wall of upper gland and lower gland respectively, when upper gland, lower gland close to form double-sided heating cavity, can be evenly heated to physiotherapy electrode piece in short time, avoid the temperature difference or local overheating phenomenon caused by single-sided heating, so that electrode piece keeps mild touch feeling when sticking, improve the comfort and physiotherapy experience of patient.

Description

Technical Field

[0001] This utility model relates to the field of electrode preheating technology, and in particular to an electrode preheating device. Background Technology

[0002] In the fields of physical therapy, beauty care, and rehabilitation medicine, physiotherapy electrode pads are a common type of conductive adhesive patch. They are typically used in conjunction with physiotherapy devices, electrical stimulators, or low-frequency therapy devices to prevent postpartum urinary retention, constipation, and to restore gastrointestinal and pelvic functions.

[0003] Since physiotherapy electrode pads are mostly made of hydrogel or conductive silicone materials, their storage environment is generally at a low temperature. Especially when used in winter or in air-conditioned rooms, the initial temperature of the electrode pads is much lower than the body surface temperature. When users apply the cold electrode pads directly to their skin, they often experience a significant cold sensation, which can cause discomfort or even local muscle contraction. For patients with sensitive skin or weak constitutions, sudden cold stimulation may also cause irritation and affect the physiotherapy effect.

[0004] To address this, an electrode preheating device is proposed. Utility Model Content

[0005] In view of this, the present invention provides an electrode preheating device to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0006] The technical solution of this utility model is achieved as follows: an electrode sheet preheating device,

[0007] Includes a lower pressure cover and an upper pressure cover hinged to the lower pressure cover;

[0008] A ceramic heating element is fixedly installed on the inner wall of the lower pressure cover, and a heat-conducting plate is fixedly connected above the ceramic heating element. A rubber pad is adhered to the upper surface of the heat-conducting plate.

[0009] The inner wall structure of the upper pressure cover is the same as that of the lower pressure cover;

[0010] A groove is provided on one side of the top of the lower pressure cover, and a thermal sensor is fixedly installed in the groove for real-time detection of the temperature of the heating area.

[0011] A microcontroller is fixedly installed on the side wall of the lower pressure cover;

[0012] Rotary locks are installed on the front sides of the lower and upper pressure covers. Micro-touch switches are installed on the rotary locks to detect the closed state of the upper pressure cover and to electrically link with the microcontroller.

[0013] More preferably, the rotary lock includes a rotary hook and a locking ring;

[0014] The locking ring is fixed to the lower pressure cover by screws, the rotating locking hook is installed on the upper pressure cover by screws, and the micro-touch switch is fixedly installed on the inner wall of the locking ring. When the rotating locking hook is locked with the locking ring, the micro-touch switch is activated.

[0015] More preferably, the ceramic heating element is electrically connected to the output terminal of the microcontroller, and is used to heat the ceramic element when the microcontroller outputs a conduction signal.

[0016] The signal output terminal of the thermistor is electrically connected to the input terminal of the microcontroller, and is used to transmit the real-time detected temperature signal to the microcontroller.

[0017] The output terminal of the micro-touch switch is electrically connected to the digital input terminal of the microcontroller. When the upper cover is not closed, the micro-touch switch is disconnected, blocking the heating control signal output by the microcontroller.

[0018] Both sides of the bottom of the lower cover are fixedly connected to support bases, and a power module is fixedly installed at the bottom of the lower cover between the two support bases.

[0019] The power module provides power to the microcontroller, the thermal sensor, the micro-touch switch, and the ceramic heating element.

[0020] The present invention has the following advantages due to the adoption of the above technical solution:

[0021] I. This utility model features a stacked structure consisting of a ceramic heating element, a heat-conducting plate, and a rubber pad on the inner walls of the upper and lower pressure covers. When the upper and lower pressure covers are closed, a double-sided heating cavity is formed, which can uniformly heat the physiotherapy electrode pads in a short time. The rubber pads can fully adhere to the electrode pads for preheating when closed, avoiding temperature differences or local overheating caused by one-sided heating. This ensures that the electrode pads maintain a gentle touch when applied, improving patient comfort and physiotherapy experience.

[0022] Second, this utility model is equipped with a temperature control system consisting of a thermal sensor and a microcontroller, which can detect temperature changes in real time and adjust the output power to keep the heating temperature within a safe range of about 40°C, preventing the electrode adhesive layer from deteriorating or causing skin burns due to excessive temperature. The front end is equipped with a linkage safety structure of a rotary lock and a micro-touch switch, which allows heating to be enabled only when the upper cover is fully closed. If the upper cover is opened or not locked, the micro-touch switch immediately disconnects the circuit, thereby effectively preventing misoperation and usage risks.

[0023] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a diagram of the closing structure of this utility model;

[0026] Figure 2 This is an open structural diagram of the present invention;

[0027] Figure 3 This is a diagram showing the split structure of the lower pressure cap of this utility model;

[0028] Figure 4 This is a structural diagram of the rotary lock of this utility model.

[0029] Figure descriptions: 11. Lower pressure cover; 12. Upper pressure cover; 13. Support base; 14. Power module; 111. Ceramic heating element; 112. Heat-conducting plate; 113. Rubber pad; 114. Thermistor; 21. Rotary lock; 22. Micro-touch switch; 23. Microcontroller. Detailed Implementation

[0030] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] like Figure 1-4 As shown, this utility model embodiment provides an electrode preheating device, including a lower pressure cover 11 and an upper pressure cover 12 hinged to the lower pressure cover 11. The upper pressure cover 12 and the lower pressure cover 11 have the same inner wall structure. The two are connected by a hinge structure to form an openable and closable shell for accommodating the physiotherapy electrode. After the upper pressure cover 12 and the lower pressure cover 11 are closed, a sealed heating chamber is formed, so that the electrode can be heated on both sides before use.

[0033] In this embodiment, a ceramic heating element 111 is fixedly installed on the inner wall of the lower pressure cover 11. The ceramic heating element 111 is made of PTC ceramic material and has self-limiting temperature characteristics, which can automatically maintain a constant temperature and heat up within a limited temperature range.

[0034] A heat-conducting plate 112 is fixedly connected above the ceramic heating element 111. A rubber pad 113 is bonded to the upper surface of the heat-conducting plate 112. The rubber pad 113 is made of heat-resistant rubber material and has good flexibility and resilience. It can fully fit with the electrode sheet for preheating when closed.

[0035] The inner wall structure of the upper pressure cover 12 is the same as that of the lower pressure cover 11. Both are provided with ceramic heating elements 111, heat-conducting plates 112 and rubber pads 113 in sequence to form a double-sided constant temperature heating cavity, so that the electrode plates placed therein can obtain a uniform heating effect.

[0036] In this embodiment, a groove is provided on one side of the top of the lower pressure cover 11, and a thermal sensor 114 is fixedly installed in the groove. The thermal sensor 114 is preferably an NTC thermistor, and its signal output terminal is electrically connected to the input terminal of the microcontroller 23 to detect the temperature of the heating area in real time and feed it back to the microcontroller 23.

[0037] A microcontroller 23 is fixedly installed on the side wall of the lower pressure cover 11. The microcontroller 23 is used to receive the temperature signal of the thermal sensor 114 and the status signal of the micro-touch switch 22, and output control commands. The output terminal of the microcontroller 23 is electrically connected to the ceramic heating element 111. When the detected temperature is lower than the preset temperature threshold and the upper pressure cover 12 is in the closed state, the microcontroller 23 outputs a conduction signal to drive the ceramic heating element 111 to be energized and heated.

[0038] When the detected temperature reaches the set upper limit or the upper pressure cover 12 is opened, the microcontroller 23 immediately outputs a power-off signal to cut off the heating circuit. The working temperature setting range is 40℃±2℃.

[0039] In this embodiment, a rotary lock 21 is installed at the front end of the upper cover 12 and the lower cover 11. The rotary lock 21 includes a rotary lock hook and a lock ring. The lock ring is fixed to the outer wall of the front end of the lower cover 11 by screws, and the rotary lock hook is installed on the inner side of the front end of the upper cover 12 by screws. The two cooperate with each other to form a locking structure.

[0040] The micro-touch switch 22 is fixedly installed on the inner wall of the locking ring. When the upper cover 12 is rotated to close and the locking hook is locked with the locking ring, the rotating locking hook pushes the contacts of the micro-touch switch 22 to close. When the upper cover 12 is open or not fully closed, the micro-touch switch 22 is disconnected. The output terminal of the micro-touch switch 22 is electrically connected to the digital input terminal of the microcontroller 23 to detect the opening and closing status of the cover.

[0041] The microcontroller 23 can only output a heating control signal when the upper cover 12 is fully closed; if the upper cover 12 is opened, the heating will be immediately cut off to achieve safety protection.

[0042] In this embodiment, support bases 13 are fixedly connected to both sides of the bottom of the lower pressure cover 11. The support bases 13 are used to stably place the main body of the device. A power module 14 is fixedly installed at the bottom of the lower pressure cover 11 and between the two support bases 13.

[0043] The power module 14 includes a lithium battery pack and a charging interface, providing stable power to the microcontroller 23, the thermal sensor 114, the micro-touch switch 22 and the ceramic heating element 111, and can be universally charged via the Type-C interface.

[0044] In this embodiment, the lower pressure cover 11 and the upper pressure cover 12 are made of ABS engineering plastic, which is resistant to common disinfectants (such as 75% alcohol and disinfectant wipes) to prevent cross-infection.

[0045] In this embodiment, the rotary lock 21 is a lock of model FA-1114;

[0046] In this embodiment, the front side of the lower pressure cover 11 has several openings for the electrode sheet wires to pass through during the heating process.

[0047] When this utility model is in operation: the operator places the physiotherapy electrode pad to be preheated flat on the heating surface inside the lower pressure cover 11, then closes the upper pressure cover 12 and locks it with the rotating lock 21. When the upper pressure cover 12 and the lower pressure cover 11 are closed, the rotating lock hook and the locking ring lock each other, which triggers the micro-touch switch 22 and sends a closing signal to the microcontroller 23. At this time, the microcontroller 23 receives the signal and starts to detect the temperature.

[0048] During the detection phase, the thermal sensor 114 collects the temperature data inside the heating chamber in real time and transmits the detection signal to the input terminal of the microcontroller 23. The microcontroller 23 controls the preheating temperature to 40℃±2℃. When the ceramic heating element 111 is powered on and heated, the generated heat is evenly diffused to the heating area through the heat conduction plate 112 and then fully contacts the physiotherapy electrode through the rubber pad 113, so that the surface temperature of the electrode rises slowly.

[0049] Since the inner walls of the upper pressure cover 12 and the lower pressure cover 11 are equipped with the same heating layer structure, the upper and lower sets of ceramic heating plates 111 work synchronously to achieve uniform heating of both sides of the electrode plates, thereby improving heating efficiency and heat distribution uniformity.

[0050] When the user accidentally opens the upper pressure cover 12 or the rotary lock 21 is not fully closed, the micro-touch switch 22 immediately disconnects the signal input, and the microcontroller 23 instantly cuts off the heating output to prevent heating in the non-closed state.

[0051] Users can rotate to release the rotating lock 21, lift the upper cover 12, and take out the warm physiotherapy electrode pads for use.

[0052] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An electrode preheating device, characterized in that: Includes a lower pressure cover (11) and an upper pressure cover (12) hinged to the lower pressure cover (11). A ceramic heating element (111) is fixedly installed on the inner wall of the lower cover (11), and a heat-conducting plate (112) is fixedly connected above the ceramic heating element (111). A rubber pad (113) is adhered to the upper surface of the heat-conducting plate (112). The inner wall structure of the upper pressure cover (12) is the same as that of the lower pressure cover (11); A groove is provided on one side of the top of the lower pressure cover (11), and a thermal sensor (114) is fixedly installed in the groove for real-time detection of the temperature of the heating area; A microcontroller (23) is fixedly installed on the side wall of the lower pressure cover (11). Rotary locks (21) are installed on the front sides of the lower pressure cover (11) and the upper pressure cover (12). A micro-touch switch (22) is installed on the rotary lock (21) to detect the closed state of the upper pressure cover (12) and to electrically link with the microcontroller (23).

2. The electrode preheating device according to claim 1, characterized in that: The rotary lock (21) includes a rotary hook and a lock ring; The locking ring is fixed to the lower pressure cover (11) by screws, the rotating locking hook is installed on the upper pressure cover (12) by screws, and the micro-touch switch (22) is fixedly installed on the inner wall of the locking ring. When the rotating locking hook is locked with the locking ring, the micro-touch switch (22) is activated.

3. The electrode preheating device according to claim 2, characterized in that: The ceramic heating element (111) is electrically connected to the output terminal of the microcontroller (23) and is used to heat the ceramic element when the microcontroller (23) outputs a conduction signal.

4. The electrode preheating device according to claim 3, characterized in that: The signal output terminal of the thermal sensor (114) is electrically connected to the input terminal of the microcontroller (23) to transmit the real-time detected temperature signal to the microcontroller (23).

5. The electrode preheating device according to claim 4, characterized in that: The output terminal of the micro-touch switch (22) is electrically connected to the digital input terminal of the microcontroller (23). When the upper cover (12) is not closed, the micro-touch switch (22) is disconnected, blocking the heating control signal output by the microcontroller (23).

6. The electrode preheating device according to claim 5, characterized in that: The bottom of the lower cover (11) is fixedly connected to both sides of the support base (13), and a power module (14) is fixedly installed at the bottom of the lower cover (11) between the two support bases (13). The power module (14) provides power to the microcontroller (23), the thermal sensor (114), the micro-touch switch (22) and the ceramic heating element (111).

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