Voltage detection device for electric automobile

Abstract

The invention relates to the technical field of detection equipment, and discloses a voltage detection device for an electric automobile, the device comprises a box body part, a battery main body, a detection equipment main body and a bottom plate fixedly mounted at the bottom of the box body part, a box door is hinged to one side of the front surface of the box body part, and a placement plate is fixedly connected to the lower part of the interior of the box body part; an auxiliary assembly is arranged at the top of the placing plate, an adjusting assembly is arranged at the top of the box body part, the auxiliary assembly comprises a clamping unit and a locking unit, the clamping unit comprises a mounting box capable of transversely sliding, a double-head motor is fixedly mounted in the mounting box, and the two output ends of the double-head motor are fixedly connected with lead screws; the outer side of the lead screw is in threaded connection with a moving plate, the bottom of the moving plate is fixedly connected with a clamping plate, and the problems that the detection result is influenced by vibration or movement, or the accuracy of the detection result is influenced by loosening or unstable connection of a connecting line are solved.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, specifically to a voltage testing device for electric vehicles. Background Technology

[0002] Power batteries are an important component of electric vehicles. Their state of charge (SOC) is an important basis for diagnosing battery health and determining whether the battery has been overcharged or over-discharged. Power voltage state testing equipment can detect and monitor power batteries.

[0003] For example, in the power voltage status detection device for electric vehicles (announcement number CN211318687U), a protective shell is fixedly installed on one side of the main body of the power voltage status detection device. A terminal block is fixedly installed inside the protective shell. A base plate is movably connected to the lower surface of the main body of the power voltage status detection device. A locking assembly is fixedly installed on the upper surface of the base plate, and a wiring assembly is also fixedly installed on the upper surface of the base plate. The locking assembly facilitates the installation and disassembly of the power voltage status detection device, making it easier for workers to install and replace the device, thus improving work efficiency. The wiring assembly arranges the wires connected to the power voltage status detection device in an orderly manner, preventing wire tangling that could cause localized overheating and fire. The wiring assembly also simplifies wiring work during installation.

[0004] However, during the voltage testing of power batteries, it is necessary to ensure that the power battery and testing tools are placed stably to avoid affecting the test results due to vibration or movement. At the same time, when performing voltage testing, the connection wire of the voltage testing device needs to be connected to the power battery. Loose or unstable connection wires will affect the accuracy of the test results. Furthermore, the external temperature during testing will affect the voltage. Low temperatures result in lower voltage, while high temperatures result in higher voltage. It is necessary to make a comprehensive judgment based on the ambient temperature. Temperatures that are too high or too low will affect the test results.

[0005] Therefore, a voltage detection device for electric vehicles is proposed to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a voltage detection device for electric vehicles to solve the problem that vibration or movement affects the detection results, or that loose or unstable connection wires affect the accuracy of the detection results.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a voltage detection device for electric vehicles, comprising a housing, a battery body, a detection equipment body, and a base plate fixedly installed at the bottom of the housing, wherein a door is hinged to one side of the front of the housing;

[0008] Also includes:

[0009] A placement plate is fixedly connected to the lower interior of the box body, an auxiliary component is provided on the top of the placement plate, and an adjustment component is provided on the top of the box body;

[0010] The auxiliary components include a clamping unit and a locking unit. The clamping unit includes a horizontally slidable mounting box. A dual-head motor is fixedly installed inside the mounting box. Both output ends of the dual-head motor are fixedly connected to lead screws. A moving plate is threaded to the outer side of the lead screws. A clamping plate is fixedly connected to the bottom of the moving plate. A longitudinal inclined plate is fixedly connected to the middle of the moving plate.

[0011] Preferably, telescopic rods are symmetrically fixedly installed on one side of the inner top surface of the box body, and the telescopic ends of the two telescopic rods are fixedly connected to the same lower plate. A vertical rod is slidably installed inside the lower plate, and a pressure plate is fixedly connected to the bottom of the vertical rod. A horizontal rod is fixedly connected to the outside of the telescopic end of one side of the telescopic rod. The locking unit includes a fixed plate symmetrically fixedly installed on the top of the placement plate, and a horizontal shaft is fixedly connected between two adjacent fixed plates.

[0012] By adopting the above technical solution, the dual-head motor is started to work. The dual-head motor drives the lead screw to rotate. The moving plate will drive the clamping plate to slide on the top of the placement plate. The moving plate will also drive the longitudinal inclined plate to move. The longitudinal inclined plate squeezes the crossbar, causing the crossbar to descend. The crossbar drives the telescopic end of the telescopic rod and the lower plate to descend, causing the lower plate to drive the vertical rod and the pressure plate to descend.

[0013] Preferably, a linear guide rail is fixedly installed on the other side of the inner top surface of the box body, and a movable seat is fixedly connected to the output end of the linear guide rail. The bottom of the movable seat is fixedly connected to the mounting box, the bottom surface of the clamping plate is in contact with the placement plate, and the bottom of the longitudinal inclined plate abuts against the crossbar.

[0014] By adopting the above technical solution, the linear guide rail is activated, which drives the moving seat and the mounting box to move, so that the clamping plate is located on both sides of the battery body, and the longitudinal inclined plate and the crossbar are in contact, which facilitates the subsequent positioning of the battery body.

[0015] Preferably, a spring is sleeved on the outer side of the telescopic end of the telescopic rod on the other side, the top end of the spring is fixedly connected to the sleeve part of the telescopic rod on the other side, the bottom end of the spring is fixedly connected to the top of the lower plate, there are no less than two vertical rods, and a spring is sleeved on the outer side of the vertical rod.

[0016] By adopting the above technical solution, spring one is used to assist in the extension and retraction of the telescopic rod, and spring two is used to assist in the retraction and repositioning of the pressure plate.

[0017] Preferably, the two ends of the second spring are fixedly connected to the lower plate and the pressure plate respectively. A clamping bolt is installed on the outer side of the lower plate. The clamping bolt is threadedly connected to the lower plate and abuts against the vertical rod. The number of clamping bolts is the same as that of the vertical rod.

[0018] By adopting the above technical solution, tightening the clamping bolts facilitates the clamping of the vertical rod, thereby fixing the position of the pressure plate and improving the clamping effect of the pressure plate.

[0019] Preferably, a central inclined plate is installed on one side of the lower plate, the inclined surface of the central inclined plate abuts against the lower plate, a pressing plate is fixedly connected to one side of the central inclined plate, a transverse groove is opened inside the pressing plate, a moving block is slidably installed inside the transverse groove, and a spring is fixedly connected between the moving block and the inner wall of the transverse groove.

[0020] By adopting the above technical solution, the descending pressure plate will squeeze the central inclined plate, and the pressure plate will first press against the top of the battery body. Then the lower plate continues to descend, and the lower plate compresses the second spring until the clamping plate clamps and fixes the battery body. The central inclined plate will drive the pressure plate to slide, and the pressure plate can assist in pressing the fixing strip.

[0021] Preferably, there are four fixing plates, a fixing strip is slidably installed on the outer side of the horizontal axis, a vertical screw is slidably installed inside the fixing strip, there are no less than two fixing strips, a longitudinal groove is opened inside the fixing strip, the moving block is slidably connected to the longitudinal groove, an adjusting block is also slidably installed inside the longitudinal groove, and a vertical screw is vertically fixedly connected inside the adjusting block.

[0022] By adopting the above technical solution, the fixing strip is pulled to slide on the horizontal axis, and the fixing strip is positioned by tightening the auxiliary bolts. Then, the adjusting block is pulled to slide inside the longitudinal groove and adjusted to the position that needs to be fixed.

[0023] Preferably, a clamping block is rotatably connected to the bottom of the vertical screw, and a top groove is provided on the top of the placement plate. A spring four is symmetrically fixedly installed on the inner bottom surface of the top groove. A bonding plate is fixedly connected to the top of the spring four. The bonding plate is slidably connected to the top groove. An auxiliary bolt is threadedly connected to the outer side of the fixing strip. The auxiliary bolt abuts against the fixing plate on one side.

[0024] By adopting the above technical solution, the vertical screw inside the adjusting block is rotated and descends, which in turn drives the clamping block to descend, so that the clamping block presses against the connecting line and the end head, thereby facilitating the clamping and fixing of the connecting line and the end head.

[0025] Preferably, a blower and a temperature detector are fixedly installed on the top of the housing, a pressure relief valve is fixedly installed on the outer side of the housing, the adjusting assembly includes a left branch pipe connected to the outlet end of the blower, the left branch pipe includes upper and lower branch pipes, a shut-off valve is fixedly installed on the outer side of the branch pipe, an upper housing is fixedly installed on the outer side of the upper branch pipe, a connecting pipe is symmetrically connected to the top of the upper housing, the connecting pipe is connected to the interior of the upper housing, and a lower housing is fixedly installed on the outer side of the lower branch pipe.

[0026] By adopting the above technical solution, the temperature detector is used to detect the temperature inside the chamber. The blower blows air into the left branch pipe and opens the upper or lower shut-off valve to facilitate the selection of hot or cold air flowing into the right branch pipe and connecting pipe, and then spraying it out through the nozzle to heat or cool the inside of the chamber.

[0027] Preferably, an electric heating wire is fixedly installed inside the lower housing, a right branch pipe is connected to one side of the left branch pipe, a connecting pipe is connected to the side of the right branch pipe away from the left branch pipe, a spray head is fixedly installed on the side of the connecting pipe away from the right branch pipe, there are no fewer than two spray heads, and the spray heads are located inside the housing.

[0028] By adopting the above technical solution, the connecting pipe on the left is used to add coolant, and the connecting pipe on the right is used to drain coolant, thereby cooling the upper branch pipe. An electric heating wire is installed in the lower box to facilitate heating the lower branch pipe.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] 1. By setting auxiliary components, the operator opens the box door, places the battery body on the top side of the placement plate, and connects it to the main body of the testing equipment via a connecting cable. The linear guide rail is activated, causing the moving seat and mounting box to move, positioning the clamping plates on both sides of the battery body. The longitudinal inclined plates and the crossbar are then in contact. Next, the dual-head motor is activated, driving the lead screw to rotate. The clamping plates and moving plate do not rotate; the moving plate causes the clamping plates to slide on top of the placement plate. The moving plate also moves the longitudinal inclined plates, which press against the crossbar, causing it to descend. The crossbar then causes the telescopic end of the telescopic rod and the lower plate to descend. The lower plate causes the vertical rod and pressure plate to descend. The descending pressure plate presses against the central inclined plate, which first presses firmly against the top of the battery body. Then, the lower plate continues to descend, compressing the spring. The clamping plate will clamp and fix the battery body until the central inclined plate will drive the pressure plate to slide. The pressure plate will compress the spring three and the pressure plate can assist in pressing the fixing strip. The operator can pull the fixing strip to slide on the horizontal axis and fix the fixing strip by tightening the auxiliary bolt. Then, pull the adjusting block to slide inside the longitudinal groove. When it is adjusted to the position to be fixed, rotate the vertical screw inside the adjusting block. The vertical screw rotates and descends, and the vertical screw drives the pressure block to descend, so that the pressure block presses against the connecting line and the end head, which facilitates the pressing and fixing of the connecting line and the end head. This achieves stable fixing of the battery body and facilitates the fixing of the auxiliary connecting line. It solves the problem that the test results are affected by vibration or movement, or the loosening or unstable connection of the connecting line, which will affect the accuracy of the test results.

[0031] 2. By setting the adjustment component, the operator starts the blower, which blows air into the left branch pipe and opens the upper or lower shut-off valve. The gas flows through the upper branch pipe from the upper shut-off valve and through the lower branch pipe from the lower shut-off valve. The temperature detector is used to detect the internal temperature of the chamber. The left connecting pipe is used to add coolant, and the right connecting pipe is used to discharge coolant, thereby cooling the upper branch pipe. An electric heating wire is installed in the lower chamber to heat the lower branch pipe. This allows for the selection of hot or cold air to flow into the right branch pipe and connecting pipe, and then be sprayed out through the nozzle, thus heating or cooling the internal temperature of the chamber. This makes the voltage detection temperature relatively stable and reduces the influence of temperature on voltage detection. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the box door opening according to the present invention;

[0033] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0034] Figure 3 This is a schematic cross-sectional view of the box body of the present invention;

[0035] Figure 4 For the present invention Figure 3Enlarged structural diagram at point A in the middle;

[0036] Figure 5 This is a schematic diagram of the clamping plate structure of the present invention;

[0037] Figure 6 For the present invention Figure 5 Enlarged structural diagram at point B;

[0038] Figure 7 This is a schematic diagram of the longitudinal inclined plate structure of the present invention;

[0039] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C;

[0040] Figure 9 This is a schematic diagram of the central inclined plate structure of the present invention;

[0041] Figure 10 This is a schematic cross-sectional view of the placement plate of the present invention;

[0042] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point D;

[0043] Figure 12 This is a schematic diagram of the fixing strip structure of the present invention;

[0044] Figure 13 For the present invention Figure 12 Enlarged structural diagram at point E;

[0045] Figure 14 This is a schematic diagram of the hair dryer structure of the present invention.

[0046] In the diagram: 1. Box body; 2. Base plate; 3. Box door; 4. Placement plate; 5. Battery body; 6. Testing equipment body; 7. Auxiliary components; 71. Linear guide rail; 72. Moving seat; 73. Mounting box; 74. Dual-head motor; 75. Lead screw; 76. Moving plate; 77. Clamping plate; 78. Longitudinal inclined plate; 79. Telescopic rod; 710. Spring 1; 711. Lower plate; 712. Horizontal bar; 713. Vertical bar; 714. Pressure plate; 715. Spring 2; 716. Tightening bolt; 717. Center inclined plate; 718. Pressure plate; 719. 720. Horizontal groove; 721. Moving block; 722. Spring three; 723. Fixing plate; 724. Horizontal shaft; 725. Fixing strip; 726. Longitudinal groove; 727. Adjusting block; 728. Vertical screw; 729. Pressing block; 730. Top groove; 731. Spring four; 732. Adhesive plate; 733. Auxiliary bolt; 8. Adjusting assembly; 81. Left branch pipe; 82. Upper housing; 83. Connecting pipe; 84. Lower housing; 85. Right branch pipe; 86. Connecting pipe; 87. Spray head; 9. Blower; 10. Temperature detector; 11. Pressure relief valve. Detailed Implementation

[0047] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0048] Please see Figure 1 - Figure 3 The present invention provides a technical solution: a voltage detection device for electric vehicles, comprising a housing 1, a battery body 5, a detection equipment body 6, and a base plate 2 fixedly installed at the bottom of the housing 1, wherein a door 3 is hinged to one side of the front of the housing 1.

[0049] A placement plate 4 is fixedly connected to the lower part of the box body 1, and an auxiliary component 7 is provided on the top of the placement plate 4.

[0050] The auxiliary components 7 include a clamping unit and a locking unit. The clamping unit includes a horizontally sliding mounting box 73. A dual-head motor 74 is fixedly installed inside the mounting box 73. Both output ends of the dual-head motor 74 are fixedly connected to lead screws 75. A movable plate 76 is threadedly connected to the outer side of the lead screws 75. A clamping plate 77 is fixedly connected to the bottom of the movable plate 76. A longitudinal inclined plate 78 is fixedly connected to the middle of the movable plate 76.

[0051] Telescopic rods 79 are symmetrically fixedly installed on one side of the inner top surface of the housing 1. The telescopic ends of the two telescopic rods 79 are fixedly connected to the same lower plate 711. A vertical rod 713 is slidably installed inside the lower plate 711. A pressure plate 714 is fixedly connected to the bottom of the vertical rod 713. A horizontal rod 712 is fixedly connected to the outside of the telescopic end of one side of the telescopic rod 79. The locking unit includes a fixing plate 722 symmetrically fixedly installed on the top of the placement plate 4. A horizontal shaft 723 is fixedly connected between two adjacent fixing plates 722.

[0052] A linear guide rail 71 is fixedly installed on the other side of the inner top surface of the housing 1. A movable seat 72 is fixedly connected to the output end of the linear guide rail 71. The bottom of the movable seat 72 is fixedly connected to the mounting box 73. The bottom surface of the clamping plate 77 is in contact with the placement plate 4. The bottom of the longitudinal inclined plate 78 abuts against the crossbar 712.

[0053] On the other side, a spring 710 is sleeved on the outside of the telescopic end of the telescopic rod 79. The top of the spring 710 is fixedly connected to the sleeve part of the telescopic rod 79 on the other side, and the bottom of the spring 710 is fixedly connected to the top of the lower plate 711. There are at least two vertical rods 713, and a spring 715 is sleeved on the outside of the vertical rod 713.

[0054] The two ends of the second spring 715 are fixedly connected to the lower plate 711 and the pressure plate 714 respectively. The outer side of the lower plate 711 is equipped with a clamping bolt 716, which is threadedly connected to the lower plate 711. The clamping bolt 716 abuts against the vertical rod 713. The number of clamping bolts 716 is the same as that of the vertical rod 713.

[0055] Example 1: As Figure 4 - Figure 8 As shown, the operator opens the door 3, places the battery body 5 on the top side of the placement plate 4, and connects it to the main body 6 of the testing equipment via a connecting cable. The linear guide 71 is activated, causing the moving seat 72 and the mounting box 73 to move, positioning the clamping plate 77 on both sides of the battery body 5. The longitudinal inclined plate 78 is in contact with the crossbar 712. Then, the dual-head motor 74 is activated, driving the lead screw 75 to rotate. The clamping plate 77 and the moving plate 76 do not rotate; the moving plate 76 moves the clamping plate 77 on the placement plate 4. The top slides, and the moving plate 76 also drives the longitudinal inclined plate 78 to move. The longitudinal inclined plate 78 presses the crossbar 712, causing the crossbar 712 to descend. The crossbar 712 drives the telescopic end of the telescopic rod 79 and the lower plate 711 to descend. The lower plate 711 drives the vertical rod 713 and the pressure plate 714 to descend. The descending pressure plate 714 will press the central inclined plate 717. The pressure plate 714 will first press firmly on the top of the battery body 5. Then the lower plate 711 continues to descend, and the lower plate 711 compresses the second spring 715 until the clamping plate 77 clamps and fixes the battery body 5.

[0056] A central inclined plate 717 is installed on one side of the lower plate 711. The inclined surface of the central inclined plate 717 abuts against the lower plate 711. A pressing plate 718 is fixedly connected to one side of the central inclined plate 717. A transverse groove 719 is opened inside the pressing plate 718. A moving block 720 is slidably installed inside the transverse groove 719. A spring 721 is fixedly connected between the moving block 720 and the inner wall of the transverse groove 719.

[0057] Four fixing plates 722 are provided. Fixing strips 724 are slidably installed on the outer side of the horizontal shaft 723. Vertical screws 727 are slidably installed inside the fixing strips 724. There are no fewer than two fixing strips 724. A longitudinal groove 725 is opened inside the fixing strips 724. The moving block 720 is slidably connected to the longitudinal groove 725. An adjusting block 726 is also slidably installed inside the longitudinal groove 725. The vertical screw 727 is vertically fixedly connected inside the adjusting block 726.

[0058] The bottom of the vertical screw 727 is rotatably connected to a clamping block 728. The top of the placement plate 4 is also provided with a top groove 729. The inner bottom surface of the top groove 729 is symmetrically fixedly installed with a spring 730. The top of the spring 730 is fixedly connected to a bonding plate 731. The bonding plate 731 is slidably connected to the top groove 729. An auxiliary bolt 732 is threadedly connected to the outer side of the fixing strip 724. The auxiliary bolt 732 abuts against a fixing plate 722 on one side.

[0059] Example 2: Figure 9 - Figure 13 As shown, the central inclined plate 717 drives the pressure plate 718 to slide, and the pressure plate 718 compresses the spring 721. The pressure plate 718 can assist in pressing the fixing strip 724. The operator pulls the fixing strip 724 to slide on the horizontal axis 723 and positions the fixing strip 724 by tightening the auxiliary bolt 732. Then, the operator pulls the adjusting block 726 to slide inside the longitudinal groove 725. When the adjustment is adjusted to the position to be fixed, the operator rotates the vertical screw 727 inside the adjusting block 726. The vertical screw 727 rotates and descends, and the vertical screw 727 drives the pressure block 728 to descend, so that the pressure block 728 presses against the connecting line and the end head, thereby facilitating the pressing and fixing of the connecting line and the end head. This achieves stable fixing of the battery body 5 while facilitating the fixing of the auxiliary connecting line.

[0060] An adjustment assembly 8 is provided on the top of the housing 1. A blower 9 and a temperature detector 10 are fixedly installed on the top of the housing 1. A pressure relief valve 11 is fixedly installed on the outer side of the housing 1. The adjustment assembly 8 includes a left branch pipe 81 connected to the outlet end of the blower 9. The left branch pipe 81 includes upper and lower branch pipes. A shut-off valve is fixedly installed on the outer side of the branch pipe. An upper housing 82 is fixedly installed on the outer side of the upper branch pipe. A connecting pipe 83 is symmetrically connected to the top of the upper housing 82. The connecting pipe 83 communicates with the interior of the upper housing 82. A lower housing 84 is fixedly installed on the outer side of the lower branch pipe.

[0061] An electric heating wire is fixedly installed inside the lower housing 84. A right branch pipe 85 is connected to one side of the left branch pipe 81. A connecting pipe 86 is connected to the side of the right branch pipe 85 away from the left branch pipe 81. A spray head 87 is fixedly installed on the side of the connecting pipe 86 away from the right branch pipe 85. There are at least two spray heads 87, and the spray heads 87 are located inside the housing 1.

[0062] Example 3: Figure 14 As shown, the operator starts the blower 9, which blows air into the left branch pipe 81 and opens the upper or lower shut-off valve. The gas flows through the upper branch pipe from the upper shut-off valve and through the lower branch pipe from the lower shut-off valve. The temperature detector 10 is used to detect the temperature inside the housing 1. The left connecting pipe 83 is used to add coolant, and the right connecting pipe 83 is used to discharge coolant, thereby cooling the upper branch pipe. An electric heating wire is installed in the lower housing 84 to heat the lower branch pipe, allowing for the selection of hot or cold air to flow into the right branch pipe 85 and the connecting pipe 86, which is then sprayed out through the nozzle 87, thus heating or cooling the inside of the housing 1 and making the voltage detection temperature relatively stable.

[0063] Working principle: When using this device, firstly, as... Figure 1 - Figure 14 As shown, the operator opens the door 3, places the battery body 5 on the top side of the placement plate 4, and connects it to the main body 6 of the testing equipment via a connecting cable. The linear guide 71 is activated, positioning the clamping plates 77 on both sides of the battery body 5. The dual-head motor 74 is then activated, causing the moving plate 76 to slide the clamping plates 77 on top of the placement plate 4. The moving plate 76 also moves the longitudinal inclined plate 78, which presses against the horizontal bar 712. The horizontal bar 712 causes the telescopic end of the telescopic rod 79 and the lower plate 711 to descend. The lower plate 711 causes the vertical rod 713 and the pressure plate 714 to descend. The pressure plate 714 first presses firmly against the top of the battery body 5. Then, the lower plate 711 continues to descend, compressing the second spring 715 until the clamping plates 77 clamp and fix the battery body 5. The central inclined plate 717 then causes the pressure plate 718 to slide, compressing the third spring 721. The operator then slides the fixing bar 724 on the horizontal axis 723. Pull the adjusting block 726 to slide inside the longitudinal groove 725. When adjusted to the required fixed position, rotate the vertical screw 727 inside the adjusting block 726. The vertical screw 727 drives the clamping block 728 to descend, so that the clamping block 728 presses against the connecting line and the end head, thus facilitating the clamping and fixing of the connecting line and the end head. The operator starts the blower 9. The blower 9 blows air into the left branch pipe 81 and opens the upper or lower shut-off valve. The gas from the upper shut-off valve flows through the upper branch pipe, and the gas from the lower shut-off valve flows through the lower branch pipe. The temperature detector 10 is used to detect the temperature inside the box 1. The connecting pipe 83 on the left is used to add coolant, and the connecting pipe 83 on the right is used to discharge coolant, thus cooling the upper branch pipe. An electric heating wire is installed in the lower box 84 to facilitate heating the lower branch pipe, thus facilitating the selection of hot or cold air flowing into the right branch pipe 85 and the connecting pipe 86, and then spraying it out through the nozzle 87.

[0064] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0065] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A voltage detection device for an electric vehicle, comprising a housing (1), a battery body (5), a detection equipment body (6), and a base plate (2) fixedly installed at the bottom of the housing (1), wherein a door (3) is hinged to one side of the front of the housing (1); Its features are, Also includes: A placement plate (4) is fixedly connected to the lower interior of the box section (1), an auxiliary component (7) is provided on the top of the placement plate (4), and an adjustment component (8) is provided on the top of the box section (1). The auxiliary component (7) includes a clamping unit and a locking unit. The clamping unit includes a horizontally slidable mounting box (73). A dual-head motor (74) is fixedly installed inside the mounting box (73). Both output ends of the dual-head motor (74) are fixedly connected to lead screws (75). A moving plate (76) is threadedly connected to the outer side of the lead screw (75). A longitudinal inclined plate (78) is fixedly connected to the middle of the moving plate (76).

2. The voltage detection device for electric vehicles according to claim 1, characterized in that: The bottom of the movable plate (76) is fixedly connected to a clamping plate (77). A telescopic rod (79) is symmetrically fixedly installed on one side of the inner top surface of the box body (1). The telescopic ends of the two telescopic rods (79) are fixedly connected to the same lower plate (711). A vertical rod (713) is slidably installed inside the lower plate (711). A pressure plate (714) is fixedly connected to the bottom of the vertical rod (713). A horizontal rod (712) is fixedly connected to the outside of the telescopic end of one side of the telescopic rod (79). The locking unit includes a fixing plate (722) symmetrically fixedly installed on the top of the placement plate (4). A horizontal shaft (723) is fixedly connected between two adjacent fixing plates (722).

3. A voltage detection device for an electric vehicle according to claim 2, characterized in that: A linear guide rail (71) is fixedly installed on the other side of the inner top surface of the box (1). A movable seat (72) is fixedly connected to the output end of the linear guide rail (71). The bottom of the movable seat (72) is fixedly connected to the mounting box (73). The bottom surface of the clamping plate (77) is in contact with the placement plate (4). The bottom of the longitudinal inclined plate (78) abuts against the crossbar (712).

4. A voltage detection device for an electric vehicle according to claim 3, characterized in that: On the other side, a spring (710) is sleeved on the outer side of the telescopic end of the telescopic rod (79). The top end of the spring (710) is fixedly connected to the sleeve part of the telescopic rod (79) on the other side. The bottom end of the spring (710) is fixedly connected to the top of the lower plate (711). There are at least two vertical rods (713). A spring (715) is sleeved on the outer side of the vertical rod (713).

5. A voltage detection device for an electric vehicle according to claim 4, characterized in that: The two ends of the second spring (715) are fixedly connected to the lower plate (711) and the pressure plate (714) respectively. A clamping bolt (716) is installed on the outer side of the lower plate (711). The clamping bolt (716) is threadedly connected to the lower plate (711). The clamping bolt (716) abuts against the vertical rod (713). The number of clamping bolts (716) is the same as that of the vertical rod (713).

6. A voltage detection device for an electric vehicle according to claim 2, characterized in that: A central inclined plate (717) is installed on one side of the lower plate (711). The inclined surface of the central inclined plate (717) abuts against the lower plate (711). A pressing plate (718) is fixedly connected to one side of the central inclined plate (717). A transverse groove (719) is opened inside the pressing plate (718). A moving block (720) is slidably installed inside the transverse groove (719). A spring (721) is fixedly connected between the moving block (720) and the inner wall of the transverse groove (719).

7. A voltage detection device for an electric vehicle according to claim 6, characterized in that: Four fixing plates (722) are provided. Fixing strips (724) are slidably installed on the outer side of the horizontal shaft (723). Vertical screws (727) are slidably installed inside the fixing strips (724). There are no less than two fixing strips (724). A longitudinal groove (725) is opened inside the fixing strips (724). The moving block (720) is slidably connected to the longitudinal groove (725). An adjusting block (726) is also slidably installed inside the longitudinal groove (725). A vertical screw (727) is vertically fixedly connected inside the adjusting block (726).

8. A voltage detection device for an electric vehicle according to claim 7, characterized in that: The bottom of the vertical screw (727) is rotatably connected to a clamping block (728), and the top of the placement plate (4) is also provided with a top groove (729). The inner bottom surface of the top groove (729) is symmetrically fixedly installed with a spring four (730). The top of the spring four (730) is fixedly connected to a bonding plate (731). The bonding plate (731) is slidably connected to the top groove (729). The outer side of the fixing strip (724) is threaded with an auxiliary bolt (732), and the auxiliary bolt (732) abuts against the fixing plate (722) on one side.

9. A voltage detection device for an electric vehicle according to claim 1, characterized in that: A blower (9) and a temperature detector (10) are fixedly installed on the top of the housing (1). A pressure relief valve (11) is fixedly installed on the outer side of the housing (1). The adjustment assembly (8) includes a left branch pipe (81) connected to the outlet end of the blower (9). The left branch pipe (81) includes two branches, an upper branch pipe and a lower branch pipe. A shut-off valve is fixedly installed on the outer side of the branch pipe. An upper housing (82) is fixedly installed on the outer side of the upper branch pipe. A connecting pipe (83) is symmetrically connected to the top of the upper housing (82). The connecting pipe (83) is connected to the interior of the upper housing (82). A lower housing (84) is fixedly installed on the outer side of the lower branch pipe.

10. A voltage detection device for an electric vehicle according to claim 9, characterized in that: An electric heating wire is fixedly installed inside the lower housing (84). A right branch pipe (85) is connected to one side of the left branch pipe (81). A connecting pipe (86) is connected to the side of the right branch pipe (85) away from the left branch pipe (81). A nozzle (87) is fixedly installed on the side of the connecting pipe (86) away from the right branch pipe (85). There are at least two nozzles (87), and the nozzles (87) are located inside the housing (1).

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