An electric leakage detection device

Abstract

The application provides a leakage detection device, which comprises a first-stage detection rod, a second-stage detection rod and a voltage detector; the first end of the first-stage detection rod is connected with a target detection object, and is used for collecting the charged voltage of the target detection object; the first end of the second-stage detection rod is connected with the first end of the first-stage detection rod, and is used for receiving the charged voltage output by the first-stage detection rod; and the voltage detector is installed on the second-stage detection rod, and is used for detecting the charged voltage output by the second-stage detection rod, and displaying the value of the detected charged voltage; and the problem that whether the target detection object is charged cannot be determined in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of voltage detection technology, and more particularly to a leakage current detection device. Background Technology

[0002] The power battery voltage of new energy electric vehicles is relatively high, reaching 300V-800V, far exceeding the safe voltage of 36V for the human body. When a new energy electric vehicle is involved in a collision, if the high-voltage power battery protection mechanism fails, the impact may damage the car's battery, causing the car's outer shell to carry the high voltage from the high-voltage end of the power battery. When rescuers need to rescue the new energy vehicle and its passengers, they cannot determine whether the car's outer shell is electrified. If the car's outer shell is electrified beyond the safe voltage of 36V for the human body, blindly carrying out rescue operations will endanger the lives of the rescuers.

[0003] It is evident that in existing technologies, when a user needs to perform related operations on a potentially charged target object, it is uncertain whether the voltage of the target object exceeds the safe voltage for the human body. Therefore, there is an urgent need for a leakage current detection device to detect the voltage of the target object. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a leakage current detection device that solves the problem of being unable to determine whether the target object being detected is charged.

[0005] This invention provides a leakage current detection device, comprising: a first-stage detection rod, a second-stage detection rod, and a voltage detector; a first end of the first-stage detection rod is connected to a target object during use to collect the voltage of the target object; a first end of the second-stage detection rod is connected to the first end of the first-stage detection rod to receive the voltage output by the first-stage detection rod; the voltage detector is mounted on the second-stage detection rod to detect the voltage output by the second-stage detection rod and to display the detected voltage value.

[0006] Optionally, the first-stage detection rod is also used to ground the voltage of the target object when the voltage exceeds a preset safety voltage.

[0007] Optionally, the first-stage detection rod includes: a flow-guiding and fixing component, an inner flow-guiding line, and a flow-guiding core; the second-stage detection rod includes: a measuring contact and a measuring wire; the first end of the flow-guiding and fixing component is connected to the target detection object; the two ends of the inner flow-guiding line are respectively connected to the second end of the flow-guiding component and the first end of the flow-guiding core; the second end of the flow-guiding core is connected to the first end of the measuring wire through the measuring contact; the second end of the measuring wire is connected to the voltage detector.

[0008] Optionally, the flow guiding component includes: a neodymium magnet, a first fixing screw, and a copper flow guiding head; the neodymium magnet is fixed to the copper flow guiding head by the first fixing screw, and the neodymium magnet is adsorbed onto the target detection object; the copper flow guiding head is connected to the inner flow guiding line.

[0009] Optionally, the first-stage detection rod further includes: a front insulator, a spring, a copper current guide seat, and an insulating sleeve; the second-stage detection rod is detachably fixedly connected to the copper current guide seat; a first cavity is formed inside the front insulator, the first open end of the front insulator fits with the copper current guide head, and the second open end of the front insulator fits with the copper current guide seat; the first cavity is used to accommodate the spring and the current guide wire; the inner wire passes through the interior of the spring; the first end of the spring is connected to the current guide component, and the second end of the spring is connected to the first end of the current guide core; a second cavity is formed inside the current guide copper seat for accommodating the current guide core; the insulating sleeve is disposed on the cavity wall of the second cavity to keep the horizontal part of the current guide core insulated; when the second-stage detection rod is fixedly connected to the copper current guide seat, the vertical part of the copper current guide core is kept insulated from the copper current guide seat.

[0010] Optionally, the detection device further includes a copper rod and a current-guiding wire; the first end of the copper rod is fixedly connected to the copper current-guiding seat through the current-guiding wire, and the second end of the copper rod is grounded, so as to ground the current on the copper current-guiding seat when the second-stage detection rod is separated from the copper current-guiding seat.

[0011] Optionally, the drain wire is fixedly connected to the copper drain seat by a second fixing screw.

[0012] Optionally, the copper guide seat is provided with a tripping pin; the second-stage detection rod also includes a second insulating body, which is provided with a pin hole; the tripping pin is detachably connected to the pin hole.

[0013] Optionally, the detection device further includes: an insulating handle; the insulating handle is detachably fixedly connected to the second end of the second-stage detection rod.

[0014] Optionally, the voltage detector further includes an audible alarm and a visual alarm; the audible alarm is used to emit an audible alarm signal when the voltage exceeds a preset safety voltage; the visual alarm is used to emit a visual alarm signal when the voltage exceeds a preset safety voltage.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The first-stage detection probe directly contacts the target object to collect its voltage. The second-stage detection probe then transmits this voltage to a voltage detector, which detects and displays the voltage. This allows the user to know the target object's voltage. If the voltage exceeds the safe voltage of 36V, the user will not directly operate on the target object. Instead, the voltage will be released before any further operation is performed, thus protecting the user's safety. Attached Figure Description

[0017] Figure 1 This is a structural diagram of a voltage detection device provided in an embodiment of the present invention;

[0018] Figure 2 This is a structural diagram of the first-stage detection rod provided in an embodiment of the present invention;

[0019] Figure 3 This is a structural diagram of the second-stage detection rod provided in an embodiment of the present invention;

[0020] Figure 4 This is a structural diagram of an insulated handle provided in an embodiment of the present invention. Detailed Implementation

[0021] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 A structural diagram of a voltage detection device provided in an embodiment of the present invention is shown below. Figure 1 As shown, the detection device includes: a first-stage detection rod 100, a second-stage detection rod 200, and a voltage detector 300;

[0023] When in use, the first end of the first-stage detection rod 100 is connected to the target object to be detected, and is used to collect the voltage of the target object being detected.

[0024] The first end of the second-stage detection rod 200 is connected to the first end of the first-stage detection rod 100, and is used to receive the charged voltage output by the first-stage detection rod 100;

[0025] The voltage detector 300 is installed on the second-stage detection rod 200 and is used to detect the charged voltage output by the second-stage detection rod 200 and display the value of the detected charged voltage.

[0026] In this embodiment, the first-stage detection rod directly contacts the target object to collect its voltage. The second-stage detection rod 200 transmits the target voltage to the voltage detector 300. The voltage detector 300 detects and displays the voltage, allowing the user to know the target object's voltage. If the voltage exceeds the safe voltage of 36V, the user will not directly operate on the target object. Operations will only be performed after the voltage on the target object has been released, thus protecting the user's safety. For example, when the target object is a new energy electric vehicle after a collision, the first end of the first-stage detection rod 100 is connected to the brake disc of the new energy vehicle. If the detected voltage of the new energy vehicle exceeds 36V, rescue personnel will not directly rescue the new energy vehicle and its passengers. Rescue will only proceed after the voltage on the new energy vehicle has been released, thus protecting the lives of the rescue personnel. It should be noted that the target object can also be other electrical devices, including but not limited to the new energy electric vehicle referred to in this embodiment.

[0027] In another embodiment of the present invention, the first-stage detection rod 100 is further used to ground the voltage of the target object when the voltage exceeds a preset safety voltage.

[0028] In this embodiment, the first-stage detection rod 100 directly grounds the charged voltage of the target object, releasing energy through grounding. This eliminates the need for a separate energy release device on the target object. By directly releasing energy using the first-stage detection rod 100, users can immediately perform relevant operations on the target object, saving time and providing significant convenience. For example, when the first-stage detection rod 100 directly detects a new energy electric vehicle after a collision before releasing energy, rescue work can be initiated immediately after energy release, greatly saving rescue time.

[0029] Figure 2 This is a structural diagram of the first-stage detection rod 100 provided in an embodiment of the present invention. Figure 3 This is a structural diagram of the second-stage detection rod 200 provided in an embodiment of the present invention; as shown. Figure 2 and Figure 3As shown, the first-stage detection rod 100 includes: a flow-guiding and fixing component 110, an inner flow-guiding line 120, and a flow-guiding core 130; the second-stage detection rod 200 includes: a measuring contact 210 and a measuring wire 220; the first end of the flow-guiding and fixing component 110 is connected to the target detection object; the two ends of the inner flow-guiding line 120 are respectively connected to the second end of the flow-guiding component and the first end of the flow-guiding core 130; the second end of the flow-guiding core 130 is connected to the first end of the measuring contact 210 and the measuring wire 220; the second end of the measuring wire 220 is connected to the voltage detector 300.

[0030] In this embodiment, the current signal on the target object is collected by the current guiding and fixing component 110, and the current signal collected by the inner current guiding line 120 is transmitted to the measuring contact 210 of the second-level detection rod 200, and then transmitted to the voltage detector 300 through the measuring wire 220. The voltage detector 300 measures the current signal to obtain the value of the charged voltage and displays the value of the charged voltage.

[0031] Specifically, the flow guiding component includes: a neodymium magnet 111, a first fixing screw 112, and a copper flow guiding head 113; the neodymium magnet 111 is fixed to the copper flow guiding head 113 by the first fixing screw 112, and the neodymium magnet 111 is adsorbed onto the target detection object; the copper flow guiding head 113 is connected to the inner flow guiding line 120.

[0032] The first-stage detection rod 100 is firmly attached to the target object by a neodymium magnet 111, providing strong current conduction capability. The neodymium magnet 111 transmits current to the copper current guide head 113, which then transmits the current to the inner current guide wire 120. For example, when the target object is a new energy electric vehicle, the neodymium magnet 111 is attached to the brake disc of the electric vehicle for detection.

[0033] In another embodiment of the invention, such as Figure 2 and Figure 3As shown, the first-stage detection rod 100 further includes: a front insulator 140, a spring 150, a copper flow guide seat 160, and an insulating sleeve 170; the second-stage detection rod 200 is detachably fixedly connected to the copper flow guide seat 160; a first cavity is formed inside the front insulator 140, the first open end of the front insulator 140 fits with the copper flow guide head 113, and the second open end of the front insulator 140 fits with the copper flow guide seat 160; the first cavity is used to accommodate the spring 150 and the inner flow guide wire 120; the inner flow guide wire 120 passes through the... The spring 150 has a first end connected to the flow guiding component and a second end connected to the first end of the flow guiding core 130. A second cavity is formed inside the flow guiding copper seat to accommodate the flow guiding core 130. An insulating sleeve 170 is disposed on the cavity wall of the second cavity to keep the horizontal portion 131 of the flow guiding core 130 insulated. When the second-stage detection rod 200 is fixedly connected to the copper flow guiding seat 160, it keeps the vertical portion 132 of the copper flow guiding core 130 insulated from the copper flow guiding seat 160.

[0034] In this embodiment, when the second-stage detection rod 200 is fixedly connected to the copper current guide seat 160, a fixing stress is generated when the second-stage detection rod 200 and the copper current guide seat 160 are fixed. The measuring contact 210 pushes the longitudinal portion 132 of the copper current guide core 130 to compress the spring 150, thereby separating the copper current guide seat 160 from the longitudinal portion 132 of the copper current guide core 130. The copper current guide seat 160 and the copper current guide core 130 remain insulated. After the inner current guide wire 120 transmits current to the copper current guide core 130, the copper current guide core 130 transmits current to the measuring contact 210 instead of transmitting current to the copper current guide seat 160.

[0035] In another embodiment of the invention, such as Figure 2 and Figure 3 As shown, the first-stage detection rod 100 also includes a copper rod and a current-guiding wire 180; the first end of the copper rod is fixedly connected to the copper current-guiding seat 160 through the current-guiding wire 180, and the second end of the copper rod is grounded, so as to ground the current on the copper current-guiding seat 160 when the second-stage detection rod 200 is separated from the copper current-guiding seat 160.

[0036] In this embodiment, when the user detects a voltage higher than the safe voltage for the human body, the voltage needs to be released from the target object. The user removes the second-stage detection rod 200, separating it from the copper current-conducting seat 160. After removing the second-stage detection rod 200, the spring 150 loses its fixing stress and extends, thereby pushing the longitudinal portion 132 of the copper current-conducting core 130 into contact with the copper current-conducting seat 160. Current flows through the copper current-conducting core 130, the copper current-conducting seat 160, and the guiding wire 180 to ground, thus releasing the voltage. It should be noted that the copper rod is not shown in the figure.

[0037] Specifically, the guiding wire 180 is fixedly connected to the copper guide seat 160 by the second fixing screw 181. During use, the second end of the copper rod is driven into the ground 70-80cm deep, keeping the soil around the copper rod moist to increase its conductivity and accelerate the voltage release.

[0038] In another embodiment of the invention, such as Figure 2 and Figure 3 As shown, the copper flow guide seat 160 is provided with a tripping pin 190; the second-stage detection rod 200 also includes a second insulating body 230, on which a pin hole 240 is provided; the tripping pin is detachably connected to the pin hole 240.

[0039] In this embodiment, by rotating the second-stage detection rod 200, the release pin 190 of the copper flow guide seat 160 can be dislodged from the pin hole 240, thereby achieving a detachable connection between the first-stage detection rod 100 and the second-stage detection rod 200.

[0040] Figure 4 This is a structural diagram of an insulated handle 400 provided in an embodiment of the present invention, as shown below. Figure 3 and Figure 4 As shown, the detection device further includes an insulating handle 400; the insulating handle 400 is detachably fixedly connected to the second end of the second-stage detection rod 200 for the user to hold.

[0041] In this embodiment, by setting an insulating handle 400, the insulating handle 400 is fixed on the second-stage detection rod 200. The user holds the insulating handle 400 and moves the detection device to perform voltage detection on the target object. The second-stage detection rod 200 can also be separated from the first-stage detection rod 100 by rotating the insulating handle 400.

[0042] It should be noted that the second end of the second-stage detection rod 200 is provided with an insulating handle interface 250, and the insulating handle interface 250 is provided with an internal thread 260; the second end of the insulating detection rod is provided with an external thread 410, and the insulating handle 400 and the second-stage detection rod 200 are fixed by the thread; the insulating handle 400 also includes a sheath 420 and a plug 430.

[0043] In another embodiment of the invention, such as Figure 2 As shown, the voltage detector 300 further includes an audible alarm 310 and a visual alarm 320; the audible alarm 310 is used to emit an audible alarm signal when the voltage exceeds a preset safety voltage; the visual alarm 320 is used to emit a visual alarm signal when the voltage exceeds a preset safety voltage.

[0044] In this embodiment, by emitting audible and visual alarm signals, the user is further alerted that the current voltage exceeds a preset voltage, which is a safe voltage for the human body.

[0045] It should be noted that the voltage detector 300 also includes a power display 330 to indicate the power level of the voltage detector 300 to the user; it also includes a main power switch 340 to turn the detection device on or off; and it also includes a charging port 350 for charging the device.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A leakage current detection device, characterized in that, The detection device includes: a first-stage detection rod, a second-stage detection rod, and a voltage detector; When in use, the first end of the first-stage detection rod is connected to the target object to collect the voltage of the target object. The first end of the second-stage detection rod is connected to the first end of the first-stage detection rod, and is used to receive the charged voltage output by the first-stage detection rod; The voltage detector is installed on the second-stage detection rod and is used to detect the charged voltage output by the second-stage detection rod and display the value of the detected charged voltage. The first-stage detection rod is also used to ground the voltage of the target object when the voltage exceeds a preset safety voltage; The first-stage detection rod includes: a flow-guiding and fixing component, an inner flow-guiding line, and a flow-guiding core; the second-stage detection rod includes: a measuring contact and a measuring wire. The first end of the flow guiding and fixing component is connected to the target detection object; The two ends of the inner guide line are respectively connected to the second end of the guide fixing component and the first end of the guide core; The second end of the current guide core is connected to the first end of the measuring contact and the measuring wire; The second end of the measuring lead is connected to the voltage detector; The flow guiding and fixing component includes: a neodymium magnet, a first fixing screw, and a copper flow guide head; The neodymium magnet is fixed to the copper guide head by the first fixing screw, and the neodymium magnet is adsorbed onto the target detection object; The copper flow guide head is connected to the inner flow guide line; The first-stage detection rod further includes: a front insulator, a spring, a copper current guide seat, and an insulating sleeve; the second-stage detection rod is detachably and fixedly connected to the copper current guide seat; The front insulator has a first cavity inside, the first opening end of the front insulator is fitted with the copper flow guide head, and the second opening end of the front insulator is fitted with the copper flow guide seat. The first cavity is used to accommodate the spring and the inner flow guide wire. The inner guide line passes through the interior of the spring; The first end of the spring is connected to the flow guiding and fixing component, and the second end of the spring is connected to the first end of the flow guiding core; The copper flow guide seat has a second cavity inside, which is used to accommodate the flow guide core; The insulating sleeve is disposed on the cavity wall of the second cavity to keep the horizontal part of the guide core insulated; When the second-stage detection rod is fixedly connected to the copper guide seat, the longitudinal part of the guide core is kept insulated from the copper guide seat; The detection device also includes a copper rod and a lead wire; The first end of the copper rod is fixedly connected to the copper current guide seat via a current-guiding wire, and the second end of the copper rod is grounded, which is used to ground the current on the copper current guide seat when the second-stage detection rod is separated from the copper current guide seat.

2. The leakage current detection device as described in claim 1, characterized in that, The drain wire is fixedly connected to the copper drain seat by a second fixing screw.

3. The leakage current detection device as described in claim 1, characterized in that, The copper guide seat is provided with a tripping pin; the second-stage detection rod also includes a second insulating body, which is provided with a pin hole. The release pin is detachably connected to the pin hole.

4. The leakage current detection device as described in claim 1, characterized in that, The detection device further includes: an insulated handle; The insulating handle is detachably and fixedly connected to the second end of the second-stage detection rod.

5. The leakage current detection device as described in claim 1, characterized in that, The voltage detector also includes: an audible alarm and a visual alarm; The audible alarm is used to emit an audible alarm signal when the voltage exceeds a preset safety voltage. The light alarm is used to emit a light alarm signal when it detects that the voltage exceeds a preset safety voltage.

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