Automatic electrical insulation performance testing device for safety protection product
By adopting a touch screen automatic control and component integration safety protection product electrical insulation performance testing device, the problems of low equipment integration and low testing efficiency have been solved, and efficient and accurate electrical insulation performance testing has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ZHONGKE HENGWEI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-04-17
AI Technical Summary
Existing electrical insulation performance testing devices for safety protection products suffer from problems such as low equipment integration, large space occupation, low testing efficiency, and test results being greatly affected by human factors.
By employing a touchscreen-based automatic control system, combined with components such as transformers, servo push rods, and insulating partitions, an automated testing process is achieved, reducing manual operation and improving testing efficiency and accuracy.
It enables efficient and accurate electrical insulation performance testing, reduces equipment space requirements, minimizes human error, and improves the reliability and integration of test results.
Smart Images
Figure CN224137398U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of electrical insulation performance testing, and specifically relates to a device for testing the electrical insulation performance of safety protection products. Background Technology
[0002] Currently, safety protection products such as insulating gloves, insulating shoes, and insulating safety helmets play a vital role in the power and electrical industries. Their electrical insulation performance is directly related to the life safety of users. At present, the testing of the electrical insulation performance of safety protection products is mostly done by separate test devices, such as transformers, controllers, and sample devices, connected by wires at least 1 meter long. The equipment integration is low, occupies a lot of space, and is operated manually, resulting in low testing efficiency and test results being greatly affected by human factors.
[0003] Therefore, given the shortcomings of the above solutions in actual manufacturing and implementation, a safety protection product electrical insulation performance testing device is provided to address the problems of existing testing methods that use a separate structure of test chamber and transformer connected by wires, resulting in low equipment integration, large space occupation, and potential safety hazards posed by the connecting wires. The control panel uses a touch screen for automatic control, solving the problems of low testing efficiency and significant influence of human factors on test results caused by manual operation. Utility Model Content
[0004] This utility model proposes a testing device for the electrical insulation performance of safety protection products. It solves the problems of existing testing methods for the electrical insulation performance of safety protection products, which use a separate structure of test chamber and transformer connected by wires, resulting in low equipment integration and large space occupation. The connecting wires also pose certain safety hazards. The control screen adopts automatic control via touch screen, which solves the problems of low testing efficiency and test results being greatly affected by human factors due to the manual operation method.
[0005] The technical solution of this utility model is implemented as follows: a test device for electrical insulation performance of safety protection products includes: an experimental mechanism, wherein an insulating partition is provided inside the experimental mechanism, the insulating partition divides the experimental mechanism into two spaces, wherein the cavity located on the upper side is the test chamber, and a transformer is placed inside the cavity located on the lower side. An insulating layer is fixedly connected inside the cavity opened in the experimental mechanism, wherein the insulating layer is provided on the top, bottom, front, back, left and right sides of the cavity.
[0006] The experimental mechanism has a longitudinal groove inside the insulating partition, and an insulating plug assembly and a slider assembly are inserted into the longitudinal groove. A test box for placing experimental items is fixedly connected to the top surface of the plug assembly and the slider assembly.
[0007] The test chamber has two metal sheets arranged in a straight line on the bottom surface inside. Contact components are provided on the right side of the two metal sheets extending outward from one side of the test chamber.
[0008] In a preferred embodiment, the experimental mechanism is fixedly connected to four corners of its bottom surface with casters for movement. The casters have a self-locking structure. The interior of the experimental chamber has two opposing longitudinal slots. A longitudinally arranged servo push rod B is fixedly connected inside the longitudinal slot. A guide plate is installed on the bottom output end of the servo push rod B.
[0009] In a preferred embodiment, an alarm unit with an audible and visual alarm structure is fixedly connected to the top surface of the experimental mechanism. A control panel for controlling the current magnitude is also fixedly connected to the right side of the experimental mechanism. The control panel and the experimental mechanism are connected by a flexible cable. If necessary, the control panel can be removed from the experimental mechanism for remote operation. The control panel mainly performs voltage setting and adjustment, time setting and display, current magnitude display, and display of whether the test result is qualified or unqualified.
[0010] In a preferred embodiment, an emergency stop button is fixedly connected to the right side of the experimental mechanism, and the interior of the experimental mechanism is equipped with door A and door B arranged in a longitudinal array.
[0011] In a preferred embodiment, door A is used to seal the experimental chamber, and door B is used to shield the transformer. Both doors A and B have handles fixedly connected to their outer sides.
[0012] In a preferred embodiment, the door A has a transparent closed window embedded in it, and the interior of the door B has heat dissipation grooves arranged in a rectangular array.
[0013] In a preferred embodiment, a wire harness A for leading out the experimental mechanism is provided on the right side of the transformer.
[0014] In a preferred embodiment, a servo push rod A is vertically fixedly connected to the right side of the experimental mechanism, and a connecting plate is installed on the right side of the servo push rod A.
[0015] In a preferred embodiment, the connecting plate is arranged horizontally, and two contact components are fixedly connected in a straight array on the left end face of the connecting plate. An insulating cover is installed on the right side of the test mechanism by screws. The insulating cover is used to cover wire harness A and its accessories.
[0016] In a preferred embodiment, the contact assembly is wrapped with an insulating outer sheath, a handle is fixedly connected to the front end of the test chamber, and protrusion assemblies with raised structures are fixedly connected to both the front and rear sides of the guide plate. A wire harness B connected to the transformer is fixedly connected to the top of the guide plate, and a metal rod connected to the wire harness B is fixedly connected to the bottom of the guide plate.
[0017] After using the above technical solution, the beneficial effects of this utility model are:
[0018] In this invention, by setting up components such as a transformer and a servo push rod B, the testing process is realized, eliminating the need for frequent manual operation of the test circuit connection and disconnection, greatly shortening the testing cycle, improving testing efficiency, and meeting the needs of batch testing.
[0019] 2. In this utility model, compared with the prior art where the voltage is manually adjusted, the voltage adjustment is unstable, the voltage adjustment speed is uneven, and the test results are easily affected by human operation, this device adopts a fixed test circuit and control. For example, the voltage is precisely controlled by the control panel to increase or decrease at a constant speed, avoiding the error caused by manual operation. At the same time, the contact method between the metal rod and the metal plate is fixed, reducing the fluctuation of test results caused by unstable human contact, making the test results more accurate and reliable.
[0020] 3. In this utility model, through reasonable structural design, the transformer is placed in the lower cavity of the experimental mechanism, the experimental chamber is located in the upper cavity, and all components are closely matched. For example, the design of the plug assembly and slider assembly with the longitudinal groove of the insulating partition makes the test chamber compactly installed; the layout of the box door A and box door B not only meets the functional requirements, but also saves space, improves the integration of the device, and reduces the space occupied. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a front view of the electrical insulation performance testing device of this utility model.
[0023] Figure 2 This is a schematic diagram of the rear side structure of the electrical insulation performance testing device of this utility model;
[0024] Figure 3 This is a schematic diagram of the combined structure of the test chamber and plug assembly of the electrical insulation performance testing device of this utility model;
[0025] Figure 4 This is a front view schematic diagram of part of the electrical insulation performance testing device of this utility model;
[0026] Figure 5This is a schematic diagram of the combined structure of the connecting plate and contact assembly of the electrical insulation performance testing device of this utility model;
[0027] Figure 6 This is a top view of the electrical insulation performance testing device of this utility model;
[0028] Figure 7 This is a schematic diagram of the insulating cover structure of the electrical insulation performance testing device of this utility model;
[0029] In the diagram: 1. Experimental mechanism; 101. Caster wheel; 1011. Warning unit; 1012. Control panel; 1013. Emergency stop button; 1014. Door A; 1015. Handle; 1016. Enclosed window; 1017. Door B; 1018. Heat dissipation duct; 1019. Insulating cover; 2. Transformer; 201. Wiring harness A; 2011. Servo push rod A; 2012. Connecting plate; 2013. Contact assembly; 3. Insulation layer; 301. Test chamber; 3011. Insert block assembly; 3012. Slider assembly; 3013. Grip; 3014. Metal sheet; 3015. Contact assembly; 3016. Servo push rod B; 3017. Guide plate; 3018. Protrusion assembly; 3019. Wiring harness B; 3020. Metal rod. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] like Figures 1-7 As shown, a test device for electrical insulation performance of safety protection products includes: an experimental mechanism 1, an insulating partition is provided inside the experimental mechanism 1, the insulating partition separates the two spaces inside the experimental mechanism 1, the upper cavity is the test chamber, and the lower cavity contains a transformer 2. An insulating layer 3 is fixedly connected inside the cavity in the experimental mechanism 1, wherein the insulating layer 3 is provided in the upper, lower, front, back, left and right sides of the cavity.
[0032] In the experimental mechanism 1, the interior of the insulating partition is provided with a longitudinal groove, and an insulating block assembly 3011 and a slider assembly 3012 are inserted into the interior of the longitudinal groove. The top surfaces of the block assembly 3011 and the slider assembly 3012 are fixedly connected to a test box 301 for placing experimental items.
[0033] Two metal sheets 3014 are arranged in a straight line on the bottom surface of the test chamber 301. A contact assembly 3015 is provided on the right side of the two metal sheets 3014 extending outward from one side of the test chamber 301. The contact assembly 2013 is wrapped with an insulating outer sheath. A handle 3013 is fixedly connected to the front end of the test chamber 301. A protruding block assembly 3018 with a raised structure is fixedly connected to both the front and rear sides of the guide plate 3017. A wire harness B3019 connected to the transformer 2 is fixedly connected to the top of the guide plate 3017. A metal rod 3020 connected to the wire harness B3019 is also fixedly connected to the bottom of the guide plate 3017.
[0034] The experimental mechanism 1 has four fixed casters 101 at the four corners of its bottom surface. Each caster 101 has a self-locking structure. The interior of the experimental chamber has two opposing longitudinal slots. A longitudinally arranged servo push rod B3016 is fixedly connected inside the longitudinal slot. A guide plate 3017 is installed on the bottom output end of the servo push rod B3016. An alarm unit 1011 with an audible and visual alarm structure is fixedly connected to the top surface of the experimental mechanism 1. A control panel 1012 for controlling the current is also fixedly connected to the right side of the experimental mechanism 1. The control panel 1012 and the experimental mechanism 1 are connected by a flexible cable. If necessary, the control panel 1012 can be removed from the experimental mechanism 1 for remote operation. The control panel 1012 is mainly used for setting and adjusting voltage, setting and displaying time, displaying current magnitude, and displaying whether the test result is qualified or unqualified.
[0035] An emergency stop button 1013 is fixedly connected to the right side of the experimental mechanism 1. Inside the experimental mechanism 1, there are two doors, A1014 and B1017, arranged in a longitudinal array. Door A1014 is used to close the experimental chamber, and door B1017 is used to shield the transformer 2. Both doors A1014 and B1017 have handles 1015 fixedly connected to their outer sides.
[0036] Among them, the box door A1014 has a transparent closed window 1016 embedded in it, the box door B1017 has a rectangular array of heat dissipation slots 1018 inside, and the transformer 2 has a wire harness A201 leading out of the experimental mechanism 1 on the right side.
[0037] Among them, a servo push rod A2011 is vertically fixedly connected to the right side of the experimental mechanism 1. A connecting plate 2012 is installed on the right side of the servo push rod A2011. The connecting plate 2012 is arranged horizontally. Two contact components 2013 are fixedly connected in a straight array on the left end face of the connecting plate 2012. An insulating cover 1019 is installed on the right side of the experimental mechanism 1 by screws. The insulating cover 1019 is used to cover the wire harness A201 and its auxiliary components.
[0038] When in use, firstly, use the casters 101 at the four corners of the bottom end face of the experimental mechanism 1 to move the device to a suitable position. The self-locking structure of the casters 101 can fix the device and prevent it from moving during the test. Set the voltage, time, voltage boosting speed and other parameters required for the test through the control panel 1012 to prepare for the test.
[0039] Open the door A1014 and place the safety protection product to be tested into the test chamber 301. The test chamber 301 is connected to the longitudinal groove of the insulating partition in the test mechanism 1 through the plug assembly 3011 and the slider assembly 3012, which facilitates installation and disassembly. The plug assembly 3011 and the slider assembly 3012 play a positioning and support role to ensure that the test chamber 301 is placed stably.
[0040] Close the door A1014, start the device, and transformer 2 will begin working. Connect the external power supply through wiring harness A201 and adjust the voltage to the required test value. This device can test insulating gloves, insulating shoes, and insulating safety helmets. The protective equipment needs to be placed inside the test chamber 301 and kept upright. The test steps for this method are as follows:
[0041] During the safety helmet test, the safety helmet is put on the test head model and the headband is locked. When testing the insulating gloves and insulating boots, conductive liquid is filled into the test chamber 301 beforehand, and conductive steel balls are filled into the insulating gloves and insulating boots simultaneously.
[0042] a) Start servo push rods A2011 and B3016 to drive contact assembly 2013 and metal rod 3020 to contact the sample;
[0043] b) Start the control panel, apply an AC test voltage between the sample and the probe, increase the voltage to the specified value within 1 minute, and maintain it for 15 seconds;
[0044] c) Repeat the test, testing 10 points on each sample;
[0045] d) Record the magnitude of the leakage current and possible breakdown phenomena.
[0046] When the metal rod 3020 contacts the metal sheet 3014, a test circuit is formed. At this time, the current output by the transformer 2 passes through the wire harness B3019, guide plate 3017, metal rod 3020, and metal sheet 3014, then through the safety protection product (if the product has good electrical insulation performance, the current is very small or no current flows), and finally returns to the transformer 2 through the contact assembly 3015. During the test, if the electrical insulation performance of the safety protection product fails, causing an abnormal increase in current, the control panel 1012 will detect the current change and trigger the alarm unit 1011 to issue an audible and visual alarm signal to remind the operator.
[0047] If it is necessary to adjust the contact state with the sample during the test, the servo push rod A2011 on the right side of the experimental mechanism 1 can be activated. The servo push rod A2011 pushes the connecting plate 2012 to move, and the contact component 2013 on the left end face of the connecting plate 2012 moves accordingly. The insulating outer skin wrapped around the contact component 2013 can prevent accidental contact. Its position adjustment can change the contact method or position with the sample to meet different test requirements.
[0048] End of Operation: After the test is completed, first stop the operation of transformer 2, then control the servo push rod B3016 to raise the guide plate 3017, open the box door A1014, and take out the safety protection product after testing. If maintenance or inspection of transformer 2 is required, the box door B1017 can be opened. The heat dissipation slots 1018 on the box door B1017 help to dissipate heat from transformer 2 and ensure its stable operation. If an emergency occurs during the test, the emergency stop button 1013 can be pressed to quickly stop the operation of the device and ensure the safety of personnel and equipment. Box door A has the function of cutting off power when the door is opened. If external personnel accidentally open the door during the test, the voltage will be automatically cut off to stop the test and ensure the safety of the test personnel.
[0049] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An automated electrical insulation performance testing device for safety protection products, comprising an experimental mechanism (1), wherein an insulating partition is provided inside the experimental mechanism (1), the insulating partition separating two spaces inside the experimental mechanism (1), wherein the upper cavity is the experimental chamber, and a transformer (2) is placed inside the lower cavity, characterized in that, An insulating layer (3) is fixedly connected inside the cavity in the experimental mechanism (1), and the insulating layer (3) is provided in the upper, lower, front, back, left and right sides of the cavity; a longitudinal groove is provided inside the insulating partition in the experimental mechanism (1), and an insulating block assembly (3011) and a slider assembly (3012) are inserted into the longitudinal groove. A test box (301) for placing experimental items is fixedly connected to the top surface of the block assembly (3011) and the slider assembly (3012); two metal sheets (3014) are laid in a straight array on the bottom surface inside the test box (301), and a contact assembly (3015) is provided on the right side of the two metal sheets (3014) extending outward from one side of the test box (301).
2. The device according to claim 1, characterized in that, The experimental mechanism (1) has four fixedly connected casters (101) for movement at the four corners of its bottom surface. The casters (101) have a self-locking structure. The interior of the experimental chamber has two longitudinal slots facing each other. A longitudinally arranged servo push rod B (3016) is fixedly connected inside the longitudinal slot. A guide plate (3017) is installed on the bottom output end of the servo push rod B (3016).
3. The device for testing the electrical insulation performance of a safety protection product automatically according to claim 2, characterized in that, The top surface of the experimental mechanism (1) is fixedly connected to a warning unit (1011) with an audible and visual alarm structure. The right side of the experimental mechanism (1) is also fixedly connected to a control panel (1012) for controlling the current magnitude. The control panel (1012) and the experimental mechanism (1) are connected by a flexible wire. If necessary, the control panel (1012) can be removed from the experimental mechanism (1) for remote operation. The control panel (1012) mainly performs voltage setting and adjustment, time setting and display, current magnitude display, and test result qualification or failure display.
4. The device according to claim 1, characterized in that, An emergency stop button (1013) is fixedly connected to the right side of the experimental mechanism (1), and the interior of the experimental mechanism (1) is equipped with a box door A (1014) and a box door B (1017) arranged in a longitudinal array.
5. An automated electrical insulation performance testing device for safety protection products according to claim 4, characterized in that, The enclosure door A (1014) is used to seal the experimental chamber, and the enclosure door B (1017) is used to shield the transformer (2). Both the outer sides of the enclosure door A (1014) and the enclosure door B (1017) are fixedly connected with handles (1015).
6. The device for automatic testing of the electric insulation properties of safety protection products according to claim 5, characterized in that, The door A (1014) has a transparent closed window (1016) embedded in it, and the interior of the door B (1017) has heat dissipation slots (1018) arranged in a rectangular array.
7. The device according to claim 1, wherein, The right side of the transformer (2) is provided with a wire harness A (201) for leading out the experimental mechanism (1).
8. The device according to claim 1, wherein, A servo push rod A (2011) is vertically fixed on the right side of the experimental mechanism (1), and a connecting plate (2012) is installed on the right side of the servo push rod A (2011).
9. The device for automatic testing of the electric insulation properties of safety protection products according to claim 8, characterized in that, The connecting plate (2012) is arranged horizontally. Two contact components (2013) are fixedly connected in a straight array on the left end face of the connecting plate (2012). An insulating cover (1019) is installed on the right side of the experimental mechanism (1) by screws. The insulating cover (1019) is used to cover the wire harness A (201) and its auxiliary components.
10. The device for testing the electrical insulation performance of safety protection products automatically according to claim 9, characterized in that, The contact assembly (2013) is wrapped with an insulating outer sheath. A handle (3013) is fixedly connected to the front end of the test chamber (301). The front and rear sides of the guide plate (3017) are fixedly connected with protrusion assemblies (3018) with raised structures. The top of the guide plate (3017) is fixedly connected with a wire harness B (3019) connected to the transformer (2). The bottom of the guide plate (3017) is also fixedly connected with a metal rod (3020) connected to the wire harness B (3019).