Storage battery internal resistance detector for storage battery detection

Abstract

The invention relates to the technical field of storage battery detection, and particularly provides a storage battery internal resistance detector for storage battery detection, which comprises a rack and a bracket, the rack is provided with a continuous transmission mechanism and a visual detection mechanism, the support is provided with a continuous detection mechanism, the continuous detection mechanism adopts a closed-cycle second conveyor belt and two detection assemblies which work alternately, and each detection assembly is in contact with a positive pole and a negative pole of one storage battery at a time so as to detect the internal resistance of the storage battery; the continuous transmission mechanism and the continuous detection mechanism are matched, so that continuous transmission and synchronous detection of the storage battery can be realized, and the production efficiency is remarkably improved; the visual detection mechanism is matched with the joint assembly, so that the position of a storage battery pole can be automatically identified, the contact of a positive electrode and a negative electrode can be adaptively switched, and the detection suitability and the automation level are improved; the device is good in overall structure innovativeness and excellent in production applicability and has high industrial utilization value.

Description

Technical Field

[0001] The present invention relates to the technical field of battery detection, and particularly relates to a battery internal resistance detector for battery detection. Background Art

[0002] With the continuous warming of the global climate and the increasing awareness of energy conservation and environmental protection, it has become an inevitable trend for electric vehicles to replace fuel vehicles. Electric vehicles use batteries as the energy source, and one of the important parameters of the battery's usage and consumption status is its internal resistance. Whether the battery is about to fail, has insufficient capacity, or is charged and discharged improperly, it can be reflected from the change in its internal resistance. Currently, on the market, the detection of the battery's internal resistance is achieved by using a detector. By connecting the two electrodes of the detector to the positive and negative electrodes of the battery respectively, the terminal voltage of the battery and the passing current can be directly measured, and then the internal resistance of the battery can be calculated. By detecting the internal resistance of the battery, the working state of the battery can be evaluated.

[0003] Generally, when using a detector to detect the internal resistance of a battery, it needs to last for a period of time, about several seconds or more than ten seconds, and wait until the two electrodes of the detector are stably in contact with the positive and negative electrodes of the battery before the internal resistance of the battery can be accurately measured. Therefore, currently on the market, the detection process of the battery's internal resistance is discontinuous. The two electrodes of the detector are respectively connected to the positive and negative electrodes of the battery, and after waiting for a period of time, the detection of this battery is completed before it can be transported, and then the internal resistance of the next battery can be detected. For example, the Chinese patent with the publication number CN114779108B discloses a battery internal resistance detector for battery detection, which includes a right-angle base. On the right-angle base, there is a storage component for accommodating the battery, a cleaning component for cleaning the battery, and a resistance meter for measuring the resistance of the battery; when the motor drives the storage component to rotate, when the battery reaches the cleaning component, the cleaning component can clean the surface of the battery. During the cleaning process, the motor does not need to stop working, and the cleaning component will not block the rotation of the battery. Subsequently, when the motor drives the battery to rotate to the top, the battery can slide on the storage component to shake off the dust cleaned from the surface to ensure the detection accuracy. Finally, when the battery reaches the resistance meter, the positive and negative poles of the resistance meter are connected to the corresponding terminals of the battery to achieve the measurement and detection of the internal resistance. This invention can only detect one battery at a time and cannot achieve continuous detection. The discontinuous battery internal resistance detection method has extremely low efficiency, which will greatly affect the production efficiency for production lines with a large production scale of batteries. Summary of the Invention

[0004] In view of the above-mentioned disadvantages of the prior art, the purpose of the present invention is to provide a battery internal resistance detector for battery detection. By setting a cooperating continuous transmission mechanism and a continuous detection mechanism, continuous transmission and synchronous detection of the battery can be achieved; the continuous transmission mechanism uses a closed-loop conveyor belt, which can stably convey the battery; the continuous detection mechanism circulates through two alternately operating detection components, contacts the positive and negative terminal posts of the battery once, and synchronously completes the internal resistance detection by using the coincidence time of the rotation strokes of the continuous transmission mechanism and the continuous detection mechanism, significantly improving the production efficiency and being applicable to large-scale assembly line operations; it can solve the problem of low production efficiency caused by discontinuous detection of the internal resistance of the battery in the prior art. The present invention also sets a visual detection mechanism and combines it with a joint component. The visual detection mechanism uses an industrial camera to monitor the placement state of the battery in real time. The joint component drives the switching plate to move up and down through a switching cylinder, driving the conductive terminals to contact the positive terminal, the negative terminal or the negative terminal, the positive terminal respectively to switch the positive and negative polarities of the two conductive rails to adapt to the positive and negative terminal posts of the battery, eliminating the need for manual adjustment of the battery direction and improving the adaptability and automation level of the detection.

[0005] To achieve the above object and other related objects, the present invention provides a battery internal resistance detector for battery detection, including a frame and a bracket installed at the upper end of the frame;

[0006] A continuous transmission mechanism is installed on the frame. The continuous transmission mechanism uses a closed-loop conveyor belt, and the battery is placed on the upper end of the conveyor belt;

[0007] A visual detection mechanism is provided at the upper end of the frame near the input end of the continuous transmission mechanism. The visual detection mechanism uses an industrial camera to detect the placement state of the battery;

[0008] A continuous detection mechanism is installed on the bracket. The continuous detection mechanism uses a closed-loop second conveyor belt and two alternately operating detection components. A single detection component contacts the positive and negative terminal posts of a battery once to detect the internal resistance of the battery.

[0009] In an embodiment of the present invention, the continuous transmission mechanism includes:

[0010] A driving motor;

[0011] A driving roller connected to the output end of the driving motor;

[0012] A number of driven rollers for cooperative transmission;

[0013] The conveyor belt is simultaneously sleeved on the driving roller and a number of driven rollers.

[0014] In an embodiment of the present invention, there are two driving motors and two driving rollers. The two driving rollers rotate at both ends of the conveyor belt, and a number of driven rollers are rotatably engaged between the two driving rollers.

[0015] In an embodiment of the present invention, the continuous transmission mechanism further includes a tensioning roller, and the tensioning roller is tensioningly engaged with the outer side of the lower end of the conveyor belt.

[0016] In an embodiment of the present invention, a longitudinally distributed waist-shaped hole is provided at the side end of the frame. The central shaft of the tensioning roller is installed in the waist-shaped hole and locked with a nut. The tension of the conveyor belt is adjusted by adjusting the position of the central shaft of the tensioning roller in the waist-shaped hole.

[0017] In an embodiment of the present invention, there are two sets of baffle mechanisms that are relatively close to each other and cooperate with each other at the upper end of the frame. The two sets of baffle mechanisms are the same mechanisms, and each includes a cylinder and a cross plate connected to the output end of the cylinder. The cross plate can be advanced and extended above the conveyor belt to form a transmission offset limit at the side end of the storage battery.

[0018] In an embodiment of the present invention, the continuous detection mechanism includes:

[0019] A second driving motor;

[0020] A second driving roller connected to the output end of the second driving motor;

[0021] A number of second driven rollers that are in cooperative transmission;

[0022] The second conveyor belt is simultaneously sleeved on the second driving roller and a number of second driven rollers, and two detection components are respectively installed on the outer sides of the opposite ends of the second conveyor belt.

[0023] In an embodiment of the present invention, the detection component includes a first polarity measuring plate, a second polarity measuring plate and two conductive rails. Connection terminals are provided on both the first polarity measuring plate and the second polarity measuring plate. A single detection component is simultaneously in contact with the positive and negative pole columns of the storage battery through the connection terminals of the first polarity measuring plate and the connection terminals of the second polarity measuring plate;

[0024] One brush is respectively led out from one end of the first polarity measuring plate and the second polarity measuring plate close to the conductive rail, and a single brush is in electrical frictional cooperation with one conductive rail.

[0025] In an embodiment of the present invention, a joint component is installed on the side end of the vertical frame close to the conductive rail. The joint component includes an electric box, and electrode terminals are provided in the electric box; a switching cylinder is installed at the upper end of the electric box, the output end of the switching cylinder is connected with a switching plate, and two conductive terminals that are in conductive contact with the electrode terminals are provided on the switching plate. The two conductive rails are respectively electrically connected to the two conductive terminals through cables.

[0026] In an embodiment of the present invention, the electrode terminals at least include two positive electrode terminals and one negative electrode terminal. The negative electrode terminal is disposed between the two positive electrode terminals, forming a switchable electrical structure with a positive-negative-positive distribution.

[0027] As described above, the internal resistance detector for storage batteries of the present invention has the following beneficial effects:

[0028] 1. By providing a cooperating continuous transmission mechanism and a continuous detection mechanism, continuous transmission and synchronous detection of the storage battery can be achieved. The continuous transmission mechanism uses a closed-loop conveyor belt to stably convey the storage battery. The continuous detection mechanism circulates through two alternately operating detection components, makes single contact with the positive and negative electrode posts of the storage battery, and synchronously completes the internal resistance detection by utilizing the coincidence time of the rotation strokes of the continuous transmission mechanism and the continuous detection mechanism, significantly improving the production efficiency and being suitable for large-scale assembly line operations.

[0029] 2. By providing a visual detection mechanism in combination with a joint component, the visual detection mechanism uses an industrial camera to be able to monitor the placement state of the storage battery in real time. The joint component drives the switching plate to lift and move through a switching cylinder, driving the conductive terminals to respectively contact the positive electrode terminal, the negative electrode terminal or the negative electrode terminal, the positive electrode terminal to switch the positive and negative polarities of the two conductive rails to adapt to the positive and negative electrode posts of the storage battery, without the need for manual adjustment of the direction of the storage battery, improving the adaptability and automation level of the detection.

[0030] 3. The detection component directly contacts the storage battery electrode post through the connection terminals on the first polarity measurement plate and the second polarity measurement plate, and cooperates with the electrical friction between the carbon brush and the conductive rail to ensure the stability of contact and the electrical conductivity reliability during the detection process.

[0031] 4. By providing a baffle mechanism, the baffle mechanism can limit the two sides of the storage battery through the cylinder-pushed cross plate during the process of conveying the storage battery, ensuring the relativity of the contact between the storage battery and the detection component, and further guaranteeing the accuracy of the detection position.

[0032] 5. The continuous transmission mechanism adopts a tension roller and a waist-shaped hole design, and the tension of the conveyor belt can be flexibly adjusted by adjusting the position of the tension roller, extending the service life of the equipment and reducing the maintenance frequency.

[0033] 6. The present invention is reasonably designed and has a compact structure. The combined design of the continuous transmission mechanism and the continuous detection mechanism can achieve continuous transmission and synchronous detection of the storage battery, significantly improving the production efficiency. The combined design of the visual detection mechanism and the joint component can automatically identify the position of the storage battery electrode post and adaptively switch the contact of the positive and negative polarities, improving the adaptability and automation level of the detection. The overall structure of the present invention has good innovation and excellent production applicability, and has high industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Shown is a three-dimensional structural schematic diagram of a battery internal resistance detector for battery detection disclosed by the present invention.

[0035] Figure 2 Shown is a cross-sectional structural schematic diagram of a battery internal resistance detector for battery detection disclosed by the present invention.

[0036] Figure 3 Shown is a structural schematic diagram of a continuous transmission mechanism cooperating with a baffle mechanism to convey a battery in a battery internal resistance detector for battery detection disclosed by the present invention.

[0037] Figure 4 Shown is an exploded structural schematic diagram of a continuous transmission mechanism in a battery internal resistance detector for battery detection disclosed by the present invention.

[0038] Figure 5 Shown is an enlarged structural schematic diagram of a continuous detection mechanism in a battery internal resistance detector for battery detection disclosed by the present invention.

[0039] Figure 6 Shown as Figure 5 an enlarged structural schematic diagram of a single detection component in

[0040] Figure 7 Shown as Figure 6 an enlarged structural schematic diagram of a joint component in

[0041] Figure 8 Shown as Figure 7 an exploded structural schematic diagram of a joint component in

[0042] Element number description

[0043] Frame 1; waist-shaped hole 11;

[0044] Continuous transmission mechanism 2; transmission belt 21; drive motor 22; driving roller 23; driven roller 24; tensioning roller 25; vision detection mechanism 3; industrial camera 31;

[0045] Continuous detection mechanism 4; second conveyor belt 41; detection component 42; first polarity measuring plate 421; second polarity measuring plate 422; conductive rail 423; connection terminal 424; brush 425; second drive motor 43; second driving roller 44; second driven roller 45;

[0046] Baffle mechanism 5; cylinder 51; cross plate 52; vertical frame 6;

[0047] Joint component 7; electrical box 71; electrode terminal 72; switching cylinder 73; switching plate 74; conductive terminal 75; battery 8. Detailed implementation manners

[0048] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0049] Please refer to Figures 1 to 7 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical essential significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration and are not used to limit the scope for the implementation of the present invention. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0050] Please refer to Figures 1 - 7 , the present invention provides a battery internal resistance detector for battery detection, including a frame 1 and a bracket 6 installed at the upper end of the frame 1.

[0051] Please refer to Figures 1 - 2 , a continuous transmission mechanism 2 is installed on the frame 1. The continuous transmission mechanism 2 includes a closed-loop transmission belt 21, a driving motor 22, a driving roller 23 connected to the output end of the driving motor 22, and a plurality of driven rollers 24 that cooperate in transmission. The transmission belt 21 is simultaneously sleeved on the driving roller 23 and a plurality of driven rollers 24, and the battery 8 is placed on the upper end of the transmission belt 21; by driving the driving roller 23 to rotate through the driving motor 22, the transmission belt 21 is driven to rotate in a cycle to convey the battery 8, and a plurality of driven rollers 24 are driven to rotate during the rotation of the transmission belt 21. The plurality of driven rollers 24 can provide rotational support for the transmission belt 21, improving the reliability of the transmission belt 21 for conveying the battery 8. Both the driving motor 22 and the driving roller 23 are provided with two. The two driving rollers 23 rotate at both ends of the transmission belt 21, and a plurality of driven rollers 24 rotate and cooperate between the two driving rollers 23. The cooperation of the two driving motors 22 and the driving rollers 23 can provide a greater conveying force.

[0052] Please refer to Figure 3, the continuous transmission mechanism 2 further includes a tensioning roller 25, and the tensioning roller 25 is tensioned and fitted to the outer side of the lower end of the conveyor belt 21; a longitudinally distributed waist-shaped hole 11 is provided at the side end of the frame 1, and the central shaft of the tensioning roller 25 is installed in the waist-shaped hole 11 and locked with a nut. By adjusting the position of the central shaft of the tensioning roller 25 in the waist-shaped hole 11, the tension of the conveyor belt 21 can be adjusted, which is flexible to adjust, prolongs the service life of the equipment and reduces the maintenance frequency.

[0053] Please refer to Figures 4 - 5 , a continuous detection mechanism 4 is installed on the bracket 6. The continuous detection mechanism 4 includes a second conveyor belt 41 with a closed loop, two alternately operating detection components 42, a second driving motor 43, a second driving roller 44 connected to the output end of the second driving motor 43, and a number of second driven rollers 45 for cooperative transmission. The second conveyor belt 41 is simultaneously sleeved on the second driving roller 44 and a number of second driven rollers 45. The two detection components 42 are respectively installed on the outer sides of the opposite ends of the second conveyor belt 41. The second driving motor 43 drives the second driving roller 44 to rotate, and cooperates with a number of second driven rollers 45 for cooperative transmission to make the second conveyor belt 41 rotate in a loop to drive the two detection components 42 to operate alternately. A single detection component 42 contacts the positive and negative pole columns of a storage battery 8 once to detect the internal resistance of the storage battery 8. The detection component 42 includes a first polarity measuring plate 421, a second polarity measuring plate 422 and two conductive rails 423. Connecting terminals 424 are provided on both the first polarity measuring plate 421 and the second polarity measuring plate 422. A single detection component 42 is simultaneously in contact with the positive and negative pole columns of the storage battery 8 through the connecting terminals 424 of the first polarity measuring plate 421 and the connecting terminals 424 of the second polarity measuring plate 422; a brush 425 is respectively led out from a section of the first polarity measuring plate 421 and the second polarity measuring plate 422 close to the conductive rail 423, and a single brush 425 is in electrical friction fit with one conductive rail 423. The detection component directly contacts the pole column of the storage battery 8 through the connecting terminals on the first polarity measuring plate and the second polarity measuring plate, and cooperates with the electrical friction fit between the brush and the conductive rail to ensure the stability of contact and the electrical conductivity reliability during the detection process.

[0054] By setting the mutually cooperating continuous transmission mechanism 2 and continuous detection mechanism 4, the present invention can realize the continuous transmission and synchronous detection of the storage battery 8; the continuous transmission mechanism 2 adopts a conveyor belt 21 with a closed loop, which can stably convey the storage battery 8; the continuous detection mechanism 4 makes the two alternately operating detection components 42 move in a loop, contact the positive and negative pole columns of the storage battery 8 once, and synchronously complete the internal resistance detection of the storage battery 8 by using the coincidence time of the rotation strokes of the continuous transmission mechanism 2 and the continuous detection mechanism 4, significantly improving the production efficiency and being applicable to large-scale assembly line operations.

[0055] Since the storage battery 8 has a cuboid structure, the positive and negative electrode terminals of the storage battery 8 are respectively arranged on both sides of the upper end of the storage battery 8 and are rotationally symmetric. Inevitably, the front and rear end faces may be placed in reverse during the feeding process of the storage battery 8. At this time, the positions of the positive and negative electrode terminals change. During the detection process, it is necessary to contact and conduct electricity corresponding to the polarities of the electrode terminals of the storage battery 8. If it is connected in reverse, it will cause a short circuit in the circuit, which may cause serious circuit problems. Therefore, it is necessary to monitor the positions of the positive and negative electrode terminals of the storage battery 8 in real time during the conveying process of the storage battery 8. In the present invention, a visual detection mechanism 3 is provided at the upper end of the frame 1 close to the input end of the continuous transmission mechanism 2. The visual detection mechanism 3 uses an industrial camera 31. Specifically, a gantry is arranged at the upper end of the frame 1, and the industrial camera 31 is installed at the upper end of the gantry, so that the industrial camera 31 is suspended relative to the conveyor belt 21. The acquisition end of the industrial camera 31 corresponds directly above the storage battery 8 and can detect the placement state of the storage battery 8.

[0056] Please refer to Figures 6 - 7 , a joint assembly 7 is installed on the side end of the vertical frame 6 close to the conductive rail 423. The joint assembly 7 includes an electric box 71, and electrode terminals 72 are arranged in the electric box 71; a switching cylinder 73 is installed at the upper end of the electric box 71, and the output end of the switching cylinder 73 is connected to a switching plate 74. Two conductive terminals 75 that are in contact and conduct electricity with the electrode terminals 72 are arranged on the switching plate 74. The two conductive rails 423 are respectively electrically connected to the two conductive terminals 75 through cables (the cables are not drawn in the attached drawings, but those skilled in the art should know that conductive cables need to be used for electrical connection during actual use); the electrode terminals 72 include at least two positive terminal ends and one negative terminal end, and the negative terminal end is arranged between the two positive terminal ends, forming a switchable electrical structure with a positive-negative-positive distribution.

[0057] By providing the visual detection mechanism 3 and combining it with the joint assembly 7, the visual detection mechanism 3 uses an industrial camera 31 to be able to monitor the placement state of the storage battery 8 in real time. The joint assembly 7 drives the switching plate 74 to move up and down through the switching cylinder 71, driving the conductive terminals 75 to respectively contact the positive terminal end, the negative terminal end or the negative terminal end, the positive terminal end to switch the positive and negative polarities of the two conductive rails 423 to adapt to the positive and negative electrode terminals of the storage battery 8, without manually adjusting the direction of the storage battery 8, improving the adaptability and automation level of the detection.

[0058] At the upper end of the frame 1, there are two sets of baffle mechanisms 5 that are relatively matched and close to each other. The two sets of baffle mechanisms 5 are the same mechanisms, and each includes a cylinder 51 and a cross plate 52 connected to the output end of the cylinder 51. The cross plate 52 can be advanced and extended above the conveyor belt 21 to form a transmission offset limit at the side end of the storage battery 8. The baffle mechanism 5 can limit both sides of the storage battery 8 by advancing the cross plate 52 through the cylinder 51 during the process of conveying the storage battery 8, ensuring the relativity of the contact between the storage battery 8 and the detection component 42, and further guaranteeing the accuracy of the detection position. Moreover, the relative distance between the two sets of baffle mechanisms 5 can be adjusted, which can be applicable to the limit during the conveying of storage batteries 8 of more specifications. In actual use, the length of the cross plate 52 can be designed according to the length of the conveying line. Each single cross plate 52 is at least used in cooperation with three cylinders 51, and multiple cylinders 51 can improve the reliability of advancing the cross plate 52 to block the transmission offset of the storage battery 8.

[0059] In summary, the design of the present invention is reasonable and the structure is compact. The cooperative design of the continuous transmission mechanism 2 and the continuous detection mechanism 4 can realize the continuous transmission and synchronous detection of the storage battery 8, significantly improving the production efficiency. The cooperative design of the vision detection mechanism 3 and the connector assembly 7 can automatically identify the pole position of the storage battery 8 and adaptively switch the contact of the positive and negative poles, enhancing the adaptability and automation level of the detection. The overall structure of the present invention has good innovation and excellent production applicability, and has high industrial utilization value. Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0060] The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A battery internal resistance detector for battery detection, characterized in that It includes a frame (1) and a bracket (6) installed at the upper end of the frame (1); A continuous transmission mechanism (2) is installed on the frame (1). The continuous transmission mechanism (2) uses a closed-loop transmission belt (21), and a storage battery (8) is placed at the upper end of the transmission belt (21); At the upper end of the frame (1) near the input end of the continuous transmission mechanism (2), a vision detection mechanism (3) is provided. The vision detection mechanism (3) uses an industrial camera (31) to detect the placement state of the storage battery (8); A continuous detection mechanism (4) is installed on the bracket (6). The continuous detection mechanism (4) uses a closed-loop second transmission belt (41) and two alternately operating detection components (42). A single detection component (42) contacts the positive and negative electrode posts of a storage battery (8) once to detect the internal resistance of the storage battery.

2. The internal resistance detector for storage batteries used for storage battery detection according to claim 1, characterized in that, The continuous transmission mechanism (2) includes: A drive motor (22); A driving roller (23) connected to the output end of the drive motor (22); A number of driven rollers (24) for cooperative transmission; The transmission belt (21) is sleeved on the driving roller (23) and a number of driven rollers (24) at the same time.

3. The internal resistance detector for storage batteries used in storage battery detection according to claim 2, characterized in that, Both the drive motor (22) and the driving roller (23) are provided with two. The two driving rollers (23) rotate at both ends of the transmission belt (21), and a number of driven rollers (24) rotate and cooperate between the two driving rollers (23).

4. The battery internal resistance detector for battery detection according to claim 2, characterized in that: The continuous transmission mechanism (2) further includes a tensioning roller (25), and the tensioning roller (25) is tensioned and cooperated with the outer side of the lower end of the transmission belt (21).

5. The internal resistance detector for storage batteries used for storage battery detection according to claim 4, characterized in that: A longitudinally distributed waist-shaped hole (11) is provided at the side end of the frame (1). The central shaft of the tensioning roller (25) is installed in the waist-shaped hole (11) and locked with a nut. The tension of the transmission belt (21) is adjusted by adjusting the position of the central shaft of the tensioning roller (25) in the waist-shaped hole (11).

6. The internal resistance detector for storage batteries used for storage battery detection according to claim 1, wherein: Two groups of baffle mechanisms (5) that are relatively cooperated and close to each other are provided at the upper end of the frame (1). The two groups of baffle mechanisms (5) are the same mechanisms, and each includes a cylinder (51) and a cross plate (52) connected to the output end of the cylinder (51). The cross plate (52) can be advanced and extended above the transmission belt (21) to form a transmission offset limit at the side end of the storage battery (8).

7. The internal resistance detector for storage batteries used for detecting storage batteries according to claim 1, wherein: The continuous detection mechanism (4) includes: A second drive motor (43); A second driving roller (44) connected to the output end of the second drive motor (43); A number of second driven rollers (45) for cooperative transmission; The second transmission belt (41) is sleeved on the second driving roller (44) and a number of second driven rollers (45) at the same time. Two detection components (42) are respectively installed on the outer sides of the opposite ends of the second transmission belt (41).

8. The internal resistance detector for storage batteries used for storage battery detection according to claim 7, characterized in that: The detection component (42) includes a first polarity measurement plate (421), a second polarity measurement plate (422) and two conductive rails (423). Connection terminals (424) are provided on both the first polarity measurement plate (421) and the second polarity measurement plate (422). A single detection component (42) is simultaneously in contact with the positive and negative electrode posts of the storage battery through the connection terminals (424) of the first polarity measurement plate (421) and the connection terminals (424) of the second polarity measurement plate (422). A brush (425) is respectively led out from one end of the first polarity measurement plate (421) and the second polarity measurement plate (422) close to the conductive rail (423). A single brush (425) is in electrical friction fit with one conductive rail (423).

9. The battery internal resistance detector for battery detection according to claim 8, characterized in that: A joint component (7) is installed on the side end of the vertical frame (6) close to the conductive rail (423). The joint component (7) includes an electric box (71), and an electrode terminal (72) is provided in the electric box (71); a switching cylinder (73) is installed at the upper end of the electric box (71). The output end of the switching cylinder (73) is connected with a switching plate (74). Two conductive terminals (75) in contact conduction with the electrode terminal (72) are provided on the switching plate (74). The two conductive rails (423) are respectively electrically connected with the two conductive terminals (75) through cables.

10. The battery internal resistance detector for battery detection according to claim 9, characterized in that: The electrode terminal (72) includes at least two positive terminals and one negative terminal. The negative terminal is arranged between the two positive terminals, forming a switchable electrical structure with a positive-negative-positive distribution.

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