Incubator device for battery cell charging and discharging test

Abstract

The utility model provides an incubator device for a battery cell charge and discharge test. The incubator device is provided with an air outlet and an air return port. A battery cell bearing bracket is arranged in the incubator, and a battery cell fixing device and a wiring harness storage device are arranged on the battery cell bearing bracket; the battery cell fixing device is mounted on the battery cell bearing bracket through a clamping plate hook; and the wire harness storage device is fixed on the battery cell bearing bracket through a jackscrew. Compared with the traditional incubator, the incubator device disclosed by the utility model has the advantages that the original multi-layer plate-type interlayer is abandoned through the battery cell bearing bracket, the internal structure of the incubator is simplified, the resistance of circulating air in the incubator is reduced, the temperature uniformity is improved, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery testing, and in particular to a temperature box device for battery cell charging and discharging testing. Background Art

[0002] With the development of new energy vehicles, more and more environmental tests are being conducted on new energy vehicle batteries. Before the single cell is assembled into a module, a number of extreme conditions tests will be carried out, among which charging and discharging with different voltages and currents at different ambient temperatures are particularly important. The traditional single cell testing process is to clamp the cell with two plywood, place it on a multi-layer plate support frame in an incubator, and then fix the relevant test wires and detection wires on the lugs of the cell. The original structure of the incubator is a multi-layer plate structure with several small holes on the plate. If multiple groups of cells are tested at the same time, the small holes will be blocked, causing poor internal air circulation, introducing uneven internal temperature, and affecting the test results. At the same time, due to poor air circulation, errors will occur in temperature collection, which will increase the load on the equipment and increase unnecessary energy waste.

[0003] The existing solution is to manually intervene when such a situation occurs and manually adjust the position of the air outlet and air inlet. When the size and number of the test cells change, the air outlet is adjusted again, and this is repeated. Therefore, it is particularly important to simplify the internal structure of the temperature box without affecting the air circulation. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to achieve standardized storage of the wiring harness of the temperature box and improve the temperature uniformity.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] The utility model provides a temperature box device for battery cell charging and discharging test, wherein the temperature box device is provided with an air outlet and an air return outlet; a battery cell bearing bracket is provided inside the temperature box, and a battery cell fixing device and a wire harness storage device are provided on the battery cell bearing bracket;

[0007] The battery cell fixing device is hung on the battery cell supporting bracket through a clamping plate hook; and the wire harness storage device is fixed on the battery cell supporting bracket.

[0008] Beneficial effects: Compared with the traditional thermostat, the thermostat device of the utility model abandons the original multi-layer plate partition through the battery cell support bracket, simplifies the internal structure of the thermostat, reduces the resistance of the circulating air inside the thermostat, improves temperature uniformity and reduces energy consumption.

[0009] The incubator device of the utility model places the cell support bracket inside the incubator, and fixes the test cables therein according to the appropriate number of harness storage devices on the cell support bracket. After the cell to be tested is fixed with the cell fixing device, the cell fixing device can be hung on the cell support bracket, and the relevant test cables are connected at the pole ear. Compared with the traditional incubator, the incubator device of the utility model has the following advantages: quick and convenient operation; no need to lift the multi-layer plate compartment; and standardized storage of the test cables.

[0010] This temperature chamber device performs charge and discharge detection on test cells of different sizes and numbers.

[0011] Preferably, the battery cell supporting bracket includes a fixing, a support rod and a threading hole; a fixing is provided at one end of the battery cell supporting bracket, the fixing is fixed on the inner wall of the incubator, the fixing is provided with a pin hole, and the other end of the battery cell supporting bracket is a threading hole, the threading hole is placed in the circular hole of the incubator, and a support rod is provided between the fixing and the threading hole.

[0012] Preferably, the battery cell fixing device comprises an upper clamping plate, a lower clamping plate, fixing bolts and clamping plate hooks; the upper clamping plate and the lower clamping plate are connected and the spacing is adjusted by fixing bolts, and the upper clamping plate is provided with a clamping plate hook.

[0013] Preferably, one end of the support rod is inserted into the pin hole of the fixing member, and the other end is placed at the lower part of the threading hole.

[0014] Preferably, the battery cell fixing device comprises an upper clamping plate, a lower clamping plate, fixing bolts and a clamping plate hook; the upper clamping plate and the lower clamping plate are connected by fixing bolts, and a clamping plate hook is provided on the upper clamping plate.

[0015] Preferably, the battery cell fixing device is also provided with an anti-falling mechanism, which is arranged on the back of the splint hook 404, and the anti-falling mechanism includes a pull pin, a lock tongue cover, a spring and a lock tongue; the pull pin is arranged on one side of the lock tongue cover, the spring is arranged inside the lock tongue cover, and the lock tongue is arranged on the other side of the lock tongue cover, and the spring connects the pull pin and the lock tongue together inside the lock tongue cover.

[0016] Beneficial effect: When the battery cell fixing device is installed and hung on the support rod from top to bottom, the tip of the lock tongue contacts one side of the support rod. Under the influence of pressure, the lock tongue drives the spring and the pull pin to move outward in the opposite direction. When the support rod completely enters the inside of the splint hook, the spring and the pull pin will rebound and lock the opening of the splint hook. At this time, the battery cell fixing device is prevented from falling off.

[0017] If you want to remove the battery cell fixing device, you only need to pull the pin, which will drive the spring and the lock tongue to move outward, and then lift the battery cell fixing device upward to achieve rapid removal of the battery cell fixing device.

[0018] Preferably, the wire harness storage device comprises a wire harness storage base and a top screw; the wire harness storage base is provided with a accommodating cavity, and the top screw passes through the battery cell supporting bracket to fix the wire harness storage base.

[0019] Preferably, the wiring harness storage device is further provided with an auxiliary storage seat and head and tail bolts; the auxiliary storage seat is provided with a accommodating cavity, and the tips of the head and tail bolts are provided with external threads to fix the auxiliary storage seat to the wiring harness storage base.

[0020] Preferably, accommodating cavities are provided on both sides of the wiring harness storage base, and the bottom is rectangular with a square hole, and the square hole is used to pass the battery cell supporting bracket.

[0021] Preferably, the auxiliary storage seat is provided with accommodating cavities on both sides, the middle of the bottom is bulged, and the top of the wiring harness storage base is provided with a groove corresponding to the bulge.

[0022] Preferably, the head and tail bolts are provided with internal threads and transverse grooves, and the auxiliary receiving seat is superimposed on the transverse groove and fixed using threads.

[0023] The advantages of the utility model are:

[0024] Compared with the traditional thermostat, the thermostat device of the utility model abandons the original multi-layer plate partition through the battery cell bearing bracket, simplifies the internal structure of the thermostat, reduces the resistance of the circulating air inside the thermostat, improves temperature uniformity and reduces energy consumption.

[0025] The incubator device of the utility model places the cell support bracket inside the incubator, and fixes the test cables therein with a suitable number of harness storage devices on the cell support bracket. After fixing the cell to be tested with the upper and lower clamping plates of the cell fixing device, the cell fixing device can be hung on the cell support bracket, and the relevant test cables can be connected at the pole ears. Compared with the traditional incubator, the incubator device of the utility model has the following advantages: quick and convenient operation; no need to lift the multi-layer plate compartment; and standardized storage of the test cables.

[0026] This temperature chamber device performs charge and discharge detection on test cells of different sizes and numbers.

[0027] When the battery cell fixture is installed on the support rod from top to bottom, the tip of the lock tongue contacts the side surface of the support rod. Under the influence of pressure, the lock tongue drives the spring and the pull pin to move outward in the opposite direction. When the tip of the lock tongue contacts the side surface of the support rod, the spring and the pull pin will rebound, and the battery cell fixture can be prevented from falling off. To remove the battery cell fixture, just pull the pull pin, which drives the spring and the lock tongue to move outward, lift the battery cell fixture upward, and quickly remove the battery cell fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 11 is a schematic diagram of the structure of a temperature chamber device for battery cell charge and discharge testing in an embodiment;

[0029] Figure 2 Schematic diagram of the combined structure of the various parts of the battery cell supporting bracket in the embodiment;

[0030] Figure 3 2 is a schematic diagram of the structure of the battery cell fixing device in the embodiment;

[0031] Figure 4 is a schematic structural diagram of a wire harness storage device in an embodiment;

[0032] Figure 5 Schematic diagram of the structure of the battery cell support bracket in the embodiment;

[0033] Among them, 1-thermostat device; 2-lower air outlet; 3-upper air outlet; 4-battery cell fixing device; 5-wire harness storage device; 6-battery cell supporting bracket; 401-upper clamp; 402-lower clamp; 403-fixing bolt; 404-clamp hook; 405-pull pin; 406-lock tongue cover; 407-spring; 408-lock tongue; 501-wire harness storage base; 502-top screw; 503-auxiliary storage seat; 504-head and tail bolts; 601-support rod; 602-threading hole; 603-fixing part. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] Example 1

[0036] Please refer to the attached Figure 1-5 The present embodiment provides a temperature box device for battery cell charge and discharge testing, wherein the temperature box device 1 is provided with an air outlet 2 and an air return outlet 3; a battery cell support bracket 6 is provided inside the temperature box, and a battery cell fixing device 4 and a wire harness storage device 5 are provided on the battery cell support bracket 6.

[0037] The battery cell fixing device 4 is hung on the battery cell supporting bracket 6 via a clamping plate hook 404 ; the wire harness storage device 5 is fixed on the battery cell supporting bracket 6 via a top screw 502 .

[0038] The function of the battery cell fixing device 4 is to fix the test battery cell, and the operation is quick and convenient. The function of the wire harness storage device 5 is to standardize the storage of the test cables. The function of the battery cell supporting bracket 6 is to simplify the internal structure of the temperature box device 1 and achieve uniform temperature.

[0039] like Figure 3 As shown, the battery cell supporting bracket 6 includes a fixing part 603, a support rod 601 and a threading hole 601; a fixing part 603 is provided at one end of the battery cell supporting bracket 6, and the fixing part 603 fixes the battery cell supporting bracket 6 on the inner wall of the incubator 1, and the fixing part 603 is provided with a pin hole, and a threading hole 602 is provided at the other end of the battery cell supporting bracket 6, and the threading hole 602 is placed in the round hole of the incubator, and a support rod 601 is provided between the fixing part 603 and the threading hole 602, one end of the support rod 601 is inserted into the pin hole to prevent the support rod 601 from falling off and rolling, and the other end is placed at the lower part of the threading hole 602; the middle of the threading hole 602 is hollow, which is used for threading the test cable and floats on the upper part of the support rod 601.

[0040] When the thermostat device 1 of this embodiment is in operation, the circulating air is blown out from the air outlet 2. Since the internal structure is mostly suspended without stacking, it is conducive to the circulating air to be returned from the return air outlet 3. Figure 2 As shown, in this embodiment, the battery cell fixing device 4 is suspended on the support rod 601 of the battery cell supporting bracket 6, so the test battery cell is below the support rod 601; the wire harness storage device 5 is fixed above the support rod 601, so the test cable is above the support rod 601, avoiding malfunction caused by the test battery cell and the test cable crossing errors, and at the same time simplifying the internal structure of the temperature box to reduce wind resistance.

[0041] like Figure 4 As shown, the battery cell fixing device 4 includes an upper clamping plate 401, a lower clamping plate 402, fixing bolts 403, and a clamping plate hook 404; the upper clamping plate 401 and the lower clamping plate 402 are connected at the edges of the upper and lower clamping plates by four fixing bolts 403, and the distance between the upper clamping plate 401 and the lower clamping plate 402 is adjusted by the nuts of the fixing bolts 403, and a clamping plate hook 404 is provided in the middle of the upper clamping plate 401, and the clamping plate hook 404 is a "7"-shaped hook, the long side of which is connected to the upper clamping plate 401, and the other side is shorter than the long side, and is used for hanging the battery cell fixing device 4 through the opening, and the distance between the long side and the short side of the clamping plate hook 404 is slightly larger than the cross-sectional length of the support rod 601, so as to facilitate the quick hanging and installation of the battery cell fixing device 4.

[0042] In this embodiment, the test cell is clamped by the upper clamping plate 401 and the lower clamping plate 402 of the cell fixing device 4, fixed by the fixing bolt 403, and then hung on the cell supporting bracket 6 by the clamping plate hook 404, and the temperature box device 1 is used to set different temperatures and voltages to perform charging and discharging detection on the test cell.

[0043] like Figure 2 and Figure 4 As shown, the wire harness storage device 5 includes a wire harness storage base 501 and a top screw 502; the upper part of the wire harness storage base 501 is in the shape of a "mountain", and the lower part is provided with an integrated rectangle in the middle of the "mountain", and a square hole is left, and an internal thread is provided between the bottom of the rectangle and the square hole, and the square hole is used to pass through the support rod 601, and the two sides of the upper "mountain" are semicircular gaps for receiving the test cable; in this embodiment, the square hole of the wire harness storage device 5 passes through the support rod 601 and is fixed by connecting the internal thread of the square hole with the top screw 502, and the tip of the top screw 502 is provided with an external thread corresponding to the internal thread, and the wire harness storage base 501 is fixed above the support rod 601 to prevent the wire harness storage base 501 from shaking.

[0044] The handle of the top screw 502 is of an external hexagonal type, and can be locked and loosened by hand without auxiliary tools.

[0045] In this embodiment, the harness storage device 5 is fixed on the battery cell support bracket 6 to store the test cables, prevent the harness from being scattered, improve the cleanliness in the incubator, and also reduce wind resistance. In this embodiment, before using the top screw 502 to fix the harness storage device 5, the position of the harness storage device 5 can be reasonably arranged, and the test cable can be fixed above the battery cell support bracket 6 in a suitable position and connected to the pole ear of the test battery cell to perform charge and discharge detection on the test battery cell.

[0046] Example 2

[0047] like Figure 5 As shown, the difference between this embodiment and embodiment 1 is that: the wire harness storage device 5 also includes an auxiliary storage seat 503 and head and tail bolts 504, and a groove and an internal thread are provided at the middle top of the wire harness storage base 501 in the shape of a "mountain" character; the upper part of the auxiliary storage seat 503 is in the shape of a "mountain", and the two sides of the "mountain" character are semicircular gaps for receiving test cables; the middle of the lower part is protruding, which is used to insert the groove provided in the middle of the top of the wire harness storage base 501 in the "mountain" character to stack the auxiliary storage seat; the auxiliary storage seat 503 is provided with a gap in the middle of the top of the "mountain" character, which is used for the head and tail bolts 504 to pass through and connect and fix with the internal thread of the wire harness storage base 501, and the tip of the head and tail bolts 504 is provided with an external thread corresponding to the internal thread.

[0048] The tops of the head and tail bolts 504 are provided with internal threads and transverse grooves to facilitate the stacking and fixing of more auxiliary storage seats.

[0049] In this embodiment, an auxiliary storage base 503 is superimposed on the harness storage base 501, so that more test cables can be stored.

[0050] Example 3

[0051] like Figure 4As shown, the difference between this embodiment and embodiment 1 is that the battery cell fixing device 4 is also provided with an anti-falling mechanism, which is arranged on the back side of the long side of the "7" of the splint hook 404, and its function is to lock the opening of the splint hook 404 so that the battery cell fixing device 4 cannot slide freely.

[0052] The anti-falling mechanism includes a pull pin 405, a lock tongue cover 406, a spring 407 and a lock tongue 408; the pull pin 405 is arranged on one side of the lock tongue cover 406, the spring 407 is arranged inside the lock tongue cover 406, and the lock tongue 408 is arranged on the other side of the lock tongue cover 406, and the lock tongue 408 is close to the opening, wherein the spring 407 connects the pull pin 405 and the lock tongue 408 together inside the lock tongue cover 406.

[0053] When the battery cell fixing device 4 is installed and suspended on the support rod 601 from top to bottom, the tip of the locking tongue 408 contacts one side of the support rod 601. Under the influence of pressure, the locking tongue 408 drives the spring 407 and the pull pin 405 to move outward in the opposite direction. When the support rod 601 completely enters the inside of the clamping plate hook 404, the spring 407 and the pull pin 405 will rebound and lock the opening of the clamping plate hook 404. At this time, the battery cell fixing device 4 is prevented from falling off.

[0054] If the battery cell fixing device 4 is to be removed, it is only necessary to pull the pin 405 , which drives the spring 407 and the locking tongue 408 to move outward, and then the battery cell fixing device 4 is lifted upward, so that the battery cell fixing device 4 can be quickly removed.

[0055] Example 4

[0056] The difference between this embodiment and the third embodiment is that two clamping plate hooks 404 are arranged side by side in the middle of the battery cell fixing device 4 , and only one of the clamping plate hooks 404 is provided with an anti-falling mechanism.

[0057] Compared with the traditional thermostat, the thermostat device of the utility model abandons the original multi-layer plate partition through the battery cell bearing bracket, simplifies the internal structure of the thermostat, reduces the resistance of the circulating air inside the thermostat, improves temperature uniformity and reduces energy consumption.

[0058] The incubator device of the utility model places the cell support bracket inside the incubator, and fixes the test cables therein with a suitable number of harness storage devices on the cell support bracket. After fixing the cell to be tested with the upper and lower clamping plates of the cell fixing device, the cell fixing device can be hung on the cell support bracket, and the relevant test cables can be connected at the pole ears. Compared with the traditional incubator, the incubator device of the utility model has the following advantages: quick and convenient operation; no need to lift the multi-layer plate compartment; and standardized storage of the test cables.

[0059] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A temperature box device for battery cell charge and discharge testing, characterized in that: The temperature box device (1) is provided with an air outlet (2) and an air return outlet (3); a battery cell support bracket (6) is provided inside the temperature box, and a battery cell fixing device (4) and a wire harness storage device (5) are provided on the battery cell support bracket (6); the battery cell fixing device (4) is suspended on the battery cell support bracket (6) through a clamping hook (404); and the wire harness storage device (5) is fixed on the battery cell support bracket (6).

2. The incubator device for battery cell charge and discharge testing according to claim 1, characterized in that: The battery cell support bracket (6) comprises a fixing member (603), a support rod (602) and a threading hole (601); a fixing member (603) is provided at one end of the battery cell support bracket (6), the fixing member (603) is fixed on the inner wall of the incubator, the fixing member (603) is provided with a pin hole, and the other end of the battery cell support bracket (6) is a threading hole (601), the threading hole (601) is placed in a circular hole of the incubator, and a support rod (602) is provided between the fixing member (603) and the threading hole (601).

3. The incubator device for battery cell charge and discharge testing according to claim 2, characterized in that: One end of the support rod (602) is inserted into the pin hole of the fixing member (603), and the other end is placed at the lower part of the threading hole (601).

4. The incubator device for battery cell charge and discharge testing according to claim 1, characterized in that: The battery cell fixing device (4) comprises an upper clamping plate (401), a lower clamping plate (402), fixing bolts (403) and a clamping plate hook (404); the upper clamping plate (401) and the lower clamping plate (402) are connected via the fixing bolts (403), and the clamping plate hook (404) is provided on the upper clamping plate (401).

5. The incubator device for battery cell charge and discharge testing according to claim 4, characterized in that: The battery cell fixing device (4) is also provided with an anti-falling mechanism, which is arranged on the back of the clamping plate hook (404), and comprises a pull pin (405), a lock tongue cover (406), a spring (407) and a lock tongue (408); the pull pin (405) is arranged on one side of the lock tongue cover (406), the spring (407) is arranged inside the lock tongue cover (406), the lock tongue (408) is arranged on the other side of the lock tongue cover (406), and the spring (407) connects the pull pin (405) and the lock tongue (408) together inside the lock tongue cover (406).

6. The incubator device for battery cell charge and discharge testing according to claim 1, characterized in that: The wire harness storage device (5) comprises a wire harness storage base (501) and a top screw (502); the wire harness storage base (501) is provided with a receiving cavity, and the top screw (502) passes through the battery cell supporting bracket (6) to fix the wire harness storage base (501).

7. The incubator device for battery cell charge and discharge testing according to claim 6, characterized in that: The wire harness storage device (5) is also provided with an auxiliary storage seat (503) and head and tail bolts (504); the auxiliary storage seat (503) is provided with a receiving cavity, and the tips of the head and tail bolts (504) are provided with external threads to fix the auxiliary storage seat (503) to the wire harness storage base (501).

8. The incubator device for battery cell charge and discharge testing according to claim 6, characterized in that: The wiring harness storage base (501) is provided with accommodating cavities on both sides, and the bottom is rectangular with a square hole, and the square hole is used to pass the battery cell supporting bracket (6).

9. The incubator device for battery cell charge and discharge testing according to claim 7, characterized in that: The auxiliary storage seat (503) is provided with accommodating cavities on both sides, and the middle of the bottom is bulged, and the top of the wiring harness storage base (501) is provided with a groove corresponding to the bulge.

10. The incubator device for battery cell charge and discharge testing according to claim 7, characterized in that: The head and tail bolts (504) are provided with internal threads and transverse grooves, and the auxiliary receiving seat (503) is superimposed on the transverse groove and fixed by threads.

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