A new type of electrical safety regulation surface type paste detection probe
By designing a novel surface-mounted electrical safety testing probe, the problems of poor probe adhesion on complex surfaces and handheld operation have been solved, achieving efficient and safe electrical safety testing, which is particularly suitable for large-area electrical equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI MEDICAL DEVICE INSPECTION & TESTING CENTER CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-24
AI Technical Summary
Existing electrical safety testing probes have poor adhesion to complex surfaces, are easily damaged, and require handheld operation, resulting in low testing efficiency and insufficient safety.
A novel surface-mounted electrical safety inspection probe is designed, employing a combined structure of a conductive contact surface, a reusable adhesive layer, an insulating layer, and a protective shell. The conductive contact surface has a large area, and the probe is fixed to the equipment surface via the adhesive layer. The insulating layer protects the operator, while the protective shell provides convenience and stability.
It enables stable detection on complex surfaces, reduces the risk of electric shock, improves detection efficiency and safety, is suitable for large-area equipment, and is reusable, thus reducing costs.
Smart Images

Figure CN224553305U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrical testing technology, and in particular to a novel electrical safety surface-mounted adhesive detection probe. Background Technology
[0002] Electrical safety testing is the safety testing and certification of electrical and electronic products, with the aim of ensuring that the products will not cause harm to personal safety and property during use.
[0003] Electrical safety testing is a crucial part of the electrical safety testing conducted before registration applications for medical devices, home appliances, and other related fields. Currently, there are two main types of probes used in electrical safety testing: probe-type probes and alligator clip probes. Probe-type probes contact the test point with their tip and are suitable for testing small areas, gaps, and other complex locations. However, most tests require simulating scenarios where a patient or operator comes into contact with the equipment. Therefore, alligator clips are needed in conjunction with metal foil that can be attached to the equipment. This method requires the testing personnel to wear insulated gloves and continuously move the metal foil across the equipment surface for measurement. When measuring items such as patient leakage current caused by external voltage on unprotected, grounded metal accessible parts, the metal foil needs to be attached to the equipment surface and held in place with alligator clips for measurement.
[0004] This approach may lead to the following problems: 1. Poor adhesion between the metal foil and complex surfaces such as curved or recessed surfaces may result in data deviation; 2. The metal foil is easily damaged or detached due to friction during movement, and accidental contact with live parts may cause electric shock; 3. The position of the metal foil needs to be repeatedly adjusted to find the maximum current, which prolongs the detection time.
[0005] Therefore, there is an urgent need for a new type of electrical safety testing probe that can flexibly adapt to complex surfaces and does not require handheld fixation, in order to improve testing efficiency and safety. Utility Model Content
[0006] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a new type of electrical safety surface-mounted adhesive detection probe.
[0007] This utility model is achieved through the following technical solution:
[0008] A novel surface-mounted electrical safety testing probe includes a conductive contact surface and a connecting wire. A reusable adhesive layer is adhered to the lower surface of the conductive contact surface, and a release film is adhered below the reusable adhesive layer. An insulating layer covers the upper surface of the conductive contact surface, and a protective shell is fixed on the insulating layer. One end of the connecting wire passes through the protective shell and the insulating layer and is embedded in the conductive contact surface, and the other end of the connecting wire is connected to a waterproof connector.
[0009] The conductive contact surface is made of a thin sheet of conductive material.
[0010] The conductive contact surface is 0.5-1 mm thick and has an area of 200-400 cm². 2 .
[0011] The reusable adhesive layer is made of voltage-sensitive adhesive or conductive silicone, with a thickness of 0.5-1mm.
[0012] The protective shell is made of plastic or epoxy resin and is shaped like a hollow handle.
[0013] The insulating layer is an insulating sheet.
[0014] Working principle of this utility model:
[0015] The function of conductive contact surfaces:
[0016] The conductive contact surface is made of a thin sheet of conductive material, with a thickness of 0.5-1 mm and an area between 200-400 cm². Its main function is to make contact with the surface of the electrical equipment under test, forming a good electrical connection so as to detect the electrical parameters of the equipment (such as insulation resistance, leakage current, etc.).
[0017] The conductivity of the conductive material sheet ensures that the current can pass through the contact surface stably, while its large area can cover a wider detection area, improving the comprehensiveness and accuracy of the detection.
[0018] The purpose of re-pasteable layers:
[0019] The re-adhesive layer uses conductive voltage-sensitive adhesive or conductive silicone, with a thickness of 0.5-1mm. This material has good conductivity and adhesion, ensuring that the probe is firmly attached to the surface of the device under test without affecting the electrical connection.
[0020] The release film design keeps the adhesive layer clean and protected before use, preventing contamination or damage to the adhesive layer when not in use. To use, simply peel off the release film, attach the probe to the surface of the device being tested, and it can be easily removed and reattached after testing.
[0021] The functions of the insulation layer and the protective shell:
[0022] An insulating layer covers the upper surface of the conductive contact surface to prevent operators from accidentally coming into contact with the conductive parts during use, thereby avoiding the risk of electric shock.
[0023] The protective housing, made of plastic or epoxy resin, is hollow and handle-shaped, providing both ease of operation and protection for the internal structure against damage. Connecting wires are embedded in the conductive contact surface through the protective housing and insulation layer, ensuring a stable electrical connection.
[0024] The function of waterproof connectors:
[0025] The other end of the connecting wire is connected to a waterproof connector, a design that allows the probe to be used in humid or wet environments, enhancing its adaptability and reliability.
[0026] This invention adopts an adhesive design. When using it, you only need to peel off the release film and stick the probe to the surface of the device being tested. The operation is simple and quick, and no complicated installation tools or fixing devices are required.
[0027] The hollow handle-shaped protective shell design makes it easy for operators to hold and operate, improving ease of use.
[0028] With a large conductive contact area (200-400cm²), it can cover a wider testing area, making it particularly suitable for safety testing of large-area electrical equipment, thus improving testing efficiency and comprehensiveness.
[0029] The design of the insulation layer and protective shell effectively isolates operators from direct contact with conductive parts, reducing the risk of electric shock.
[0030] The use of a waterproof connector enables the probe to be used safely in humid environments, further enhancing the probe's safety and reliability.
[0031] The reusable adhesive layer design allows the probe to be used multiple times, reducing testing costs. The conductive voltage-sensitive adhesive or conductive silicone has excellent adhesion properties, ensuring that the probe maintains good electrical connection and adhesion even after repeated application and removal.
[0032] Highly applicable:
[0033] The probe's material and structural design enable it to adapt to different testing environments and equipment surfaces, whether it is a smooth metal surface or a complex electrical equipment housing, allowing for effective adhesion and testing.
[0034] High stability:
[0035] The conductive contact surface is made of a thin sheet of conductive material with a moderate thickness (0.5-1mm), which can ensure a stable electrical connection. At the same time, the connecting wires are embedded through a protective shell and an insulation layer, which further enhances the stability of the electrical connection.
[0036] The advantages of this utility model are: this utility model can fit complex surfaces such as curved surfaces and gaps, and solves the problems of small contact area of probe-type probes and poor adhesion of alligator clips and metal foils.
[0037] This invention eliminates the need for handheld use, as it is secured with pressure-sensitive adhesive, reducing the risk of electric shock.
[0038] This invention has significant advantages in terms of ease of operation, detection range, safety, reusability, applicability and stability. It is particularly suitable for safety inspection of large-area electrical equipment and can effectively improve detection efficiency and safety. Attached Figure Description
[0039] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0040] like Figure 1 As shown, a novel surface-mounted electrical safety testing probe includes a conductive contact surface 1 and a connecting wire 2. A reusable adhesive layer 3 is adhered to the lower surface of the conductive contact surface 1, and a release film 4 is adhered below the reusable adhesive layer 3. An insulating layer 5 covers the upper surface of the conductive contact surface 1, and a protective shell 6 is fixed on the insulating layer 5. One end of the connecting wire 2 passes through the protective shell 6 and the insulating layer 5 and is embedded in the conductive contact surface 1. The other end of the connecting wire 2 is connected to a waterproof connector 7.
[0041] The conductive contact surface 1 is made of a thin sheet of conductive material.
[0042] The conductive contact surface is 0.5-1 mm thick and has an area of 200-400 cm². 2 .
[0043] The reusable adhesive layer 3 is made of voltage-sensitive adhesive or conductive silicone, with a thickness of 0.5-1mm.
[0044] The protective shell 6 is made of plastic or epoxy resin and is shaped like a hollow handle.
[0045] The insulating layer 5 is an insulating sheet.
[0046] Conductive contact surface 1: Made of a 0.5-1mm thick sheet of conductive material (such as a silver coating or carbon nanotube film, attached to the insulating layer 5), it has a certain degree of flexibility to adapt to complex surfaces, increase the contact area with the object being measured, and improve measurement stability.
[0047] Reusable adhesive layer 3: Located below the conductive contact surface 1, it uses voltage-sensitive adhesive (e.g., acrylic as the base, with added conductive materials such as silver powder and copper powder to meet the needs of repeated adhesion and high conductivity) or conductive silicone (e.g., liquid silicone rubber as the base, with added conductive materials such as silver powder and copper powder to meet the needs of deformable adhesion scenarios and skin contact types), with a thickness of about 0.5-1mm, ensuring no adhesive residue after peeling and allowing for repeated adhesion;
[0048] Connecting wire 2: embedded in the center of conductive contact surface 1, connected to the main unit of the detector through waterproof connector 7, and covered with a waterproof insulating sleeve;
[0049] Release film 4: Covers the back of the reusable adhesive layer 3 and should be removed before use (to prevent adhesive contamination).
[0050] Protective housing 6: The connection area between the wire and the conductive contact surface 1 is protected by a plastic housing or insulating materials such as epoxy resin, and can also be used as a handheld area for daily probe testing.
[0051] Working principle: Before testing, clean the surface of the object to be tested (to avoid oil stains affecting the adhesion). During testing, remove the release film 4, hold the protective shell 6, and attach the conductive contact surface 1 to the surface of the device to be tested (such as a non-metallic shell or a metal accessible part) through the reusable adhesive layer 3. The conductive contact surface 1 is in close contact with the device surface through the reusable adhesive layer 3, and stable testing can be performed without holding the device. After testing, the probe can be directly peeled off, and the adhesive residue can be wiped away.
[0052] This invention offers significant advantages in terms of ease of operation, detection range, safety, reusability, applicability, and stability. It is particularly suitable for safety testing of large-area electrical equipment, effectively improving testing efficiency and safety. This invention can also be applied to the detection of leakage current or voltage resistance in medical electrical equipment.
Claims
1. A novel surface-mounted adhesive detection probe for electrical safety regulations, characterized in that: It includes a conductive contact surface and a connecting wire. A reusable adhesive layer is pasted on the lower surface of the conductive contact surface, and a release film is pasted under the reusable adhesive layer. An insulating layer covers the upper surface of the conductive contact surface, and a protective shell is fixed on the insulating layer. One end of the connecting wire passes through the protective shell and the insulating layer and is embedded in the conductive contact surface. The other end of the connecting wire is connected to a waterproof connector.
2. The novel electrical safety surface-mounted adhesive detection probe according to claim 1, characterized in that: The conductive contact surface is made of a thin sheet of conductive material.
3. The novel electrical safety surface-mounted adhesive detection probe according to claim 2, characterized in that: The conductive contact surface is 0.5-1 mm thick and has an area of 200-400 cm². 2 .
4. The novel electrical safety surface-mounted adhesive detection probe according to claim 1, characterized in that: The reusable adhesive layer is made of voltage-sensitive adhesive or conductive silicone, with a thickness of 0.5-1mm.
5. A novel electrical safety surface-mounted adhesive detection probe according to claim 1, characterized in that: The protective shell is made of plastic or epoxy resin and is shaped like a hollow handle.
6. The novel electrical safety surface-mounted adhesive detection probe according to claim 1, characterized in that: The insulating layer is an insulating sheet.